问题
选择题
You'd better ______ your coat now. It's very cold outside. [ ]
A. to put on
B. put on
C. putting on
D. to putting on
答案
答案：B
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You'd better ______ your coat now. It's very cold outside. [ ]
A. to put on
B. put on
C. putting on
D. to putting on
答案：B