[ Modals with Perfect Infinitive ]
Nobody knows exactly why he died. But we think it ___ have been an accident.
A. might
B. should
C. can
D. must
Select your answer:
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Grammar › ViewSelect the verb(s) in this sentence: “The cactus needs water.”
A. cactus
B. The
C. needs
D. water
Grammar › View
… this information very important?
A. Was
B. Were
C. Did