I’d appreciate it if you could tell me how ______ the machine.A、operateB、to ope

游客2023-10-06 29

问题 I’d appreciate it if you could tell me how ______ the machine.

选项 A、operate
B、to operate
C、operating
D、operated

答案 B

解析本题考查特殊疑问词加不定式结构的用法。what，which，how，when，where等疑问代词或疑问副词后面可以加动词不定式，构成不定式短语，在句中充当主语、宾语、表语、同位语等成分。四个选项中仅有B)为不定式形式，确定为本题的答案。

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