2. 外语
  3. I hope that by posting the letter now, I shall ensure________it before the weekend.

I hope that by posting the letter now, I shall ensure________it before the weekend.

admin2022-10-15  98
问题 I hope that by posting the letter now, I shall ensure________it before the weekend.
选项 A、your receive
B、your receiving
C、you to receive
D、your having received
答案B
解析 我希望现在寄出这封信能确保你在周末前收到。非谓语动词题。ensure后面需要接名词、动名词或宾语从句。A项中，形容词性物主代词后面接了动词，明显错误；B项用了动名词receiving，前面加了它的逻辑主语，为正确答案；C项用了ensure sb. to do sth. 的结构，是错误的；D项用了动名词的完成式，不符合句意。
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