摘要：I． 单项选择1. They came back a cold winter day. A. over B. on C. in D. at
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单项选择
--What do you do for your mind?
--I like ________.
A. watch movies
B. to watch movies
C. watches movies
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---Whose is that watch? Is it Bill's?
---I'm not sure. It ________ be his.
[
]A. may
B. can
C. must