Question

【题目】You can call Mr. Green ______ 748-5562.

A. of B. at C. in D. to

Answer 1

【答案】B

【解析】句意：你可以给Green先生打电话，号码是748-5562. of…的；at在具体地点或时刻；in在…里面；to到某地。这里call sb. at+电话号码是固定短语，给某人打电话，at后跟电话号码，故应选B。