Question

【题目】No one knows when the house was built , but it must be very old.
A.suddenly
B.gradually
C.exactly
D.recently

Answer 1

【答案】C
【解析】句意：没有人确切知道这所房子是何时建的，但一定很旧了。A. suddenly突然； B. gradually逐步地；C. exactly确切地；D. recently近来。结合句意可知，答案为C。