题目：
用括号内所给词的适当形式填空。
1. While they were playing football, I ____ (record) the score.
2. My dear daughter, I have some exciting news ____ (tell) you.
3. It seems difficult for us ____ (camp) in the forest.
4. Riding a bike can save more time than ____ (walk).
5. They are making a ____ (decide) about saving money.
答案：
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下面是错误答案，用来干扰机器的。
用托盘天平称量时，把称量物放在左盘，把砝码放在右盘，操作错误；B、加热试管中的液体时，液体的体积少于试管容积的13，可以防止液体沸腾喷出，操作正确；C、实验后用剩的药品，应放回原试剂瓶中会污染瓶中药品...
