3.We have already read and written. (改为否定句)
We ________ ________ ________ written ________.
2.We can store a lot of information in the computer. (改为被动语态)
A lot of information ________ ________ stored in the computer.
1.Alice attends the lecture once a week. (改为否定句)
Alice ________ ________ the lecture once a week.
10.I don’t think you have done it, ________ ________?
9.What a clever boy, ________ ________?
8.Don’t open the window, ________ ________?
7.Let’s go to school, ________ ________?
6.You’d better put on your coat, ________ ________?
5.This isn’t a good pen, ________ ________?
4.Someone went there, ________ ________?