Jack, you’d better make sure _____ the exact time of the train before setting ou
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Jack, you’d better make sure _____ the exact time of the train before setting out． |
答案
| B |
解析
| 考查介词。make sure of确保，保证，后接名词，that后接从句。句意：杰克，你最好确信在出发之前的火车确切时间。 |
举一反三
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