【正文】
雙寫結(jié)尾的輔音字母再加 ing sitsitting 。 swimswimming 。 putputting 。 run— running 練習(xí) 1. Mr Liang (read) a book now. 2. The mouses (run) now. 3.. Look ! Amy and John (swim). 4. My sister (make) a kite in his room now. 5. Look! The bus (stop). 6. We (have) an English class now. 7. Listen! Someone is (e). 8. They (catch) insects now. 9. He (do) an experiment now. 10. They (collect) stamps now. 11. Look! My brother (dive) now. 12. Sue ( watch ) TV in the dining room. 13. The nurses (get ) off the bus. 14. Come on.