---Mom Where are my keys? Do you know?I they’re in your schoolbag.A. askB. loseC. th

问题补充：

---Mom, Where are my keys? Do you know?

--- I they’re in your schoolbag.

A. ask

B. lose

C. think

D. help

答案：

A. ask

B. lose

(答案→)C. think

D. help

解析：句意：---妈，我的钥匙在哪里，你知道吗？---我想他们应该在你的书包。ask问；lose失去；think认为；help 帮助。结合语境可知选C。

考点: 考查动词的用法。