[ Past Perfect Tense ]
He ________ to China before 2015.
A. has not been
B. have not been
C. had not been
D. was not been

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Quantifiers › ViewVincent only drinks ________________ water every day. He should drink more water to stay healthy.
A. a lot of
B. a little
C. a few
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Martin will study his lessons when pigs fly. This idiom means ….
A. expensive
B. heavy
C. will never happen
D. good luck
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A. recreation
B. remedy
C. keyword
D. technique
Grammar for TOEFL › View
The contracts signed by the company has been voided because some stipulations were not met.
A. Incorrect
B. Correct
