用括号内动词的适当形式填空。 1. The teacher asks us _____(listen) carefully in class. 2. The girl _____(use) to do some reading when she was a child. 3. The old man _____ (be) ill for three years. 4. If you _______ (not know) the answer, you’d better _____ (put) up hands. 5. Thank you for ______(give) me the presents. 6. How long ______ you ______(study) English? 7. One of the boys _______ (be) born in 1992. 8. Where is my pen?   My mother ______ (take) it away. 9. The interesting story made all of us ______(not keep)quiet in class. 10. I’m sorry I forgot _____ (give) the book back to you.