1.Lucy and Lily will not travel back to England for a holiday.
2.The girl does her homework at school now.
3.Yes,you should.
4.否定：We didn't pick the apples on the farm last October.
疑问：Did we pick the apples on the farm last October?
5.否定：They were not at school just now.
疑问：Were they at school just now?
6.The Young Pioneers often carry water for Granny.
7.How long has her uncle live in Shanghai?
8.否定：The plane hasn't arrived.
疑问:Has the plane arrived?
9.否定：I haven't done my homework yet.
疑问:Have you already done your homework?
10.I have keep a new book from the school library for two days.
11.She has already got there since yesterday.
12.He has already dead for twenty years.
13.The boy has came back for an hour.
14.The film has been on for five minutes.
15.The man in a hat has been away since half an hour ago.
16.The Black family has been to China when they left England.
17.The young man has been a League member for two years.
The young man has been a member League since two years ago.
Two years now since it the young man joined in League.
It is two years since the young man joined in League.
The young man has been a member League since 1998.