[ Grammar ]
Your sister would have helped you if she ___________ been so busy.
(3rd conditional)
A. wouldn’t
B. hadn’t
C. might not
D. haven’t

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Grammar › ViewWe have taught at this school ____ a long time.
A. for
B. since
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This is the boy ……………..has English classes with me.
A. which
B. who
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Tomorrow, they ____ (visit) their grandparents.
A. visited
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