:Unit 2 Saving the Earth 句式巩固练习 I. 单项选择。 1.He is tall, _____ his son is short. A.when B.or C.while D.and 2.If we travel a short distance, we should walk _____ taking a bus. Then we’ll be greener people. A.instead of B.rather C.while D.but 3.She bought a skate board online _____ she saved a lot of time. A.so that B.as soon as C.such that D.no matter 4.You ought to return the book to the school library _____. Other students will borrow it. A.at times B.in time C.on time D.at the same time 5.He said that he _____ to Canada a few years ago. A.had been to B.have been to C.went D.go 6.—Can’t you stop making so much noise? I really can’t _____ it. —I’m terribly sorry for giving you so much
