1.
He ____ not work as a chemist.
Explanation
The correct answer is "does" because it is the present tense form of the verb "do" which is used to indicate an action in the present. "Did" is the past tense form of the verb "do" and is not suitable in this context as it refers to an action that occurred in the past.
2.
There ___ not five chairs in the classroom.
Explanation
The correct answer is "are" because the sentence is in the present tense and is stating that there are not five chairs in the classroom currently. "Were" is incorrect because it is in the past tense and does not match the tense of the sentence.
3.
You ___ not understand me.
Explanation
The correct answer is "did" because it is the past tense form of the verb "do". In this sentence, the speaker is referring to a past event or situation where the listener did not understand them.
4.
I ____ busy at the moment.
Explanation
The sentence is in the present tense and requires a subject and a verb. The word "am" is the correct form of the verb "to be" for the subject "I" in the present tense. Therefore, the correct answer is "am."
5.
We ___ leaving now.
Explanation
The correct answer is "are" because the sentence is in the present tense and the subject "we" is plural. In English, when the subject is plural, the verb "to be" is conjugated as "are" in the present tense.
6.
____ you ever been abroad?
Explanation
The question is asking about past experiences of going abroad. The correct answer is "Have" because it is the correct form of the verb "have" in the present perfect tense to indicate past experiences. The repetition of "have" in the answer is likely a typo or mistake.
7.
____ you be there tomorrow?
Explanation
The question is asking about the future, specifically if someone will be there tomorrow. The word "will" is used to form future tense in English, indicating that something is going to happen in the future. Therefore, the correct answer is "will." The repetition of "will" in the answer is likely a typographical error or redundancy.
8.
He ____worked with leading financial organizations before he joined our company.
Explanation
The word "had" is the correct answer because it indicates that the person had already worked with leading financial organizations before joining the company. The past tense of the verb "have" is used to show an action that occurred before another past action or time. In this case, the person's previous work experience is being referred to, which happened before they joined the company.
9.
Identify the sentence that correctly uses an auxiliary verb.
Correct Answer
D. We might have finished the report by tomorrow.
Explanation
The correct answer is D) "We might have finished the report by tomorrow." This sentence correctly uses the auxiliary verbs "might" and "have" to form a perfect infinitive, indicating the possibility of completing the report by tomorrow. Options A, B, and C contain errors in auxiliary verb usage: "can sings" should be "can sing," "has been" should be "have been," and "was bake" should be "was baked."
10.
The verb to be has Present Simple form:
Correct Answer
A. Am/is/are
Explanation
The verb "to be" is used in the present simple tense with the forms "am," "is," and "are." These forms are used when referring to the present time and when the subject is a singular noun (am/is) or a plural noun (are). For example, "I am happy," "She is tall," and "They are students." The other forms mentioned, "was," "were," and "will be," are used in different tenses and do not represent the present simple form of the verb "to be."
11.
The verb to be has Past Simple form:
Correct Answer
B. Was / Were
Explanation
The verb "to be" has a past simple form, which is "was" for singular subjects and "were" for plural subjects. This form is used to indicate actions or states that occurred in the past.
12.
The verb to be has Future Simple form:
Correct Answer
C. Will be
Explanation
The correct answer is "Will be" because the verb "to be" can be used in the future tense to indicate an action or state that will happen at a later time. In this case, "will be" is the future simple form of the verb "to be" and is used to express future events or states.
13.
She ____ finished already.
Correct Answer
has
Explanation
The correct answer is "has" because the sentence is in the present perfect tense and "has" is the correct form of the verb "to have" for the third person singular subject "she". The word "already" indicates that the action of finishing occurred in the past and is still relevant in the present.