Test of English as a Foreign Language is a standardized test to measure the English language ability of non-native speakers wishing to enroll in English-speaking universities. The test is accepted by many English-speaking academic and professional institutions.
Proved
They proved
They prove it
Proved it
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Fuel cells
Become
Fuel cells become
That fuel cells become
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They matured
Maturing
To mature
To maturity
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Was
Were
It was
So
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Factor analysis
Is used
How many
Involve
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Early
Have evolved
Million
From
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Are
Like
In that
Have been shown
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End
Are
To be used
Completion correct
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Used
That
But in space
Communicate with
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Has
Of being
Which held
During
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