Topics: Modal Perfect
Jeanette did very badly on the exam. She _____ harder.
A. must have studied
B. should have studied
C. could have studied
D. must studied
Select your answer:
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Verb Phrases › ViewWhat tense is the verb?
Mike will be singing tomorrow night.
A. past
B. present
C. future
Grammar › View
If Mr.Lin ________ exercise (運動)every day, he will become helthier.
A. does
B. will do
C. doing
D. do