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Your experiment reports must be checked with care beforeA、handed them inB、them
Your experiment reports must be checked with care beforeA、handed them inB、them
游客
2025-02-28
9
管理
问题
Your experiment reports must be checked with care before
选项
A、handed them in
B、them handing in
C、being handed in
D、handing them in
答案
C
解析
本题测试非谓语动词的用法。before为介词,后面接动名词,根据题意应用动名词的被动式。本句的意思是:“你的实验报告在被递交前必须经过仔细检查。”
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