用括号中所给动词的适当形式填空。

1．Our English teacher            (teach)in our school for ten years．

2．We should learn how             (face)problems in our life．

3．What         you           (do)this time yesterday?

4．Don't tell her about it unless she          (come)to ask us．

5．I learn English by        (read)it aloud every day．