---Do you know ________ for Shanghai last night?---At 9:00.A.what time he leavesB.what time does he leaveC.what time he leftD.what time did he leave
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C解析考查宾语从句及时态。由题中“Do you know”可以判断出后面紧跟的从句为宾语从句，要了解从句的结构为主谓结构，所以排除B、D两项，又因为last night为一般过去时的代表词，所以结合起来，应选C。难度适中。