题目内容

用适当的介词填空,如不需填则画“/” 。
1.  Will you have a chemistry lesson  _______ next term?
2. What do you usually do _______- weekends?
3.  I have too much homework _______this weekend.
4.  We are leaving ________ the 15th.
5.  Christmas Day is _______ December.
1. / 2. on 3. / 4. on 5. in
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