[ Grammar ]
_______ ________ never __________________.
A. They / explore a cave.
B. We have / explore a cave.
C. We have / explored a cave.
D. We have not explore a cave.
Select your answer:
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Present Perfect Tense › ViewThe plane __________ for twelve hours.
A. has flown
B. has flew
C. has fly
D. has flied
Grammar › View
If I were a prince, I …. A palace.
A. would have
B. would have had
C. had