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
