[ Past Perfect or Past Perfect Continuous ]
When they received the message, they ________ for half an hour.
A. had been studying
B. had studied
C. had study

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Subject and Verbs Agreement › ViewThree fourths of all the money ___ already been spent for this campaign.
A. has
B. have
C. is
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The last time I saw her was in 2015. It is 2019 now.
A. I haven’t seen her for 2 years.
B. I haven’t seen her since 2015.
C. I last saw her in 2019.
D. I have seen her since 2015.
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A. go
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When my brother _____ he wants to be a football player
A. grow
B. grow up
C. bring up
D. grows up
