用所给动词正确形式填空 小题1:They often ________ (do) their homework at school. 小题2:Look! The cat _____________ (run)up the tree. 小题3:Let’s _________ (have) supper. 小题4:Thank you very much for _____________ (give) me a very nice bag. 小题5:He would like __________ (go) shopping. 小题6:Listen ! The children____________ ( sing ) in the classroom. 小题7:He ____________ (not speak ) Chinese. 小题8:Mary likes___________( read ) very much. 小题9:The animal usually sleeps and ________（relax）20 hours every day. 小题10:I want ___________ (work) in a post office.