[ Present Perfect Tense ]
The scientist __________________ more than half of the liquid into the 2nd flask (container).
A. Has pouring
B. Have pour
C. Has poured
D. Has pour
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A. do
B. did
C. doing
D. to do
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She (read) a book when the phone (ring).
A. read / rang
B. was reading / rang
C. reads / rings
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A. complete sentence
B. sentence fragment
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If they ____(not) improve the bike lanes, people will continue to travel by bus or by car.
A. don’t
B. won’t