Unit 2 Protecting our environment一 填空用所给动词的适当形式填空1.Look, the children _______ computer games over there.(play)2.It _______.All the people are wearing their raincoats.(rain)3.-Where are the Greens?--They _______ in England.(travel)4.Be quiet! My baby _______.(sleep)5.-Hi,Sam.Can I use your dictionary?---Sorry, Judy, but I _______ it.(use)6.Listen! The birds_______ in the tree.(sing)7.Tom, _______ y..