72. We couldn’t read the notice on the board because several people were standing it.A. i

72. We couldn’t read the notice on the board because several people were standing it.
A. in front of
B. in the front of
C. at the back of
D. in back of

(答案→)A. in front ofB. in the front ofC. at the back ofD. in back of解析：可联系答.案.网客服索取。

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