[ Modals in The Past ]
My bicycle is broken now. I ___ ridden it down the stairs.
A. musn’t have
B. might have
C. shouldn’t have
D. can’t have

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Vocabulary & Grammar › ViewHow can you let such a silly incident ________ your friendship?
A. wreck
B. to wreck
C. wrecking
D. that wrecks
Articles and Quantifiers › View
I think ___ design of this house is quite beautiful.
A. –
B. an
C. a
D. the