1. (2020·瑞安模拟) 用方框中所给单词的适当形式填空。每词限用一次。

below   policeman   whenever   far   improve

1. （1） My mother always encourages me I meet difficulties.
3. （2） In Harbin, the temperatures usually fall zero in winter.
5. （3） Jack hurt his leg during school hiking, so he couldn't walk much .
7. （4） Lingling often goes to the English corner her spoken English.
9. （5） With the help of and soldiers, workers built Huoshenshan Hospital only in ten days.