If you choose not to receive those emails, please let us know by (send)______us

游客2024-07-14 20

问题 If you choose not to receive those emails, please let us know by (send)______us a message.

选项

答案 sending

解析分析句子结构可知，空格前的by是介词，后面可以接名词或动名词，充当宾语。本句中by后面需要接动名词，所以空格处填入send对应的动名词形式sending。

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