Question

【题目】John usually gets up at seven __________ the morning.

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

Answer 1

【答案】C

【解析】解析：句意：约翰通常早上7点起床。A. on在…之上；B. at在；C. in在…里面；D. of…的。由句意可知是“在早上”in the morning，固定短语，故选C。