在下列各句的空格内填上一个适当的完整的单词，该词的首字母已给出。
1. Newton was sitting under an apple tree when an apple f onto his head.
2. In my hometown, the weather of this summer is much h than that of last summer.
3. Tom and Jerry r their bikes to Uncle Ma’s Farm twice a month.
4. The mother cat was killed, and the baby cat had to live by i .
5. Pass me that pair of glasses, please. I can’t see the words c .