用适当形式填空 急救!
问题描述：
用适当形式填空 急救!
1._____ you _____ (have)lunch?Yes,I ___ (have) it an hour ago.
2.She _____ (wait) till her son comes back home.
3.We should do something _____ (help) for our world.
4.I want to tell you how ___ (save) the environment under the sea.
5.Unluckily his sister was hurt ____ (bad) in the traffic accident last week.
答
1.Have,had had
2.will wait
3.helpful
4.to save
5.badly