1、The company recommended that a new gas station be built here.

　　A.ordered B.insisted

　　C.suggested D.demanded

　　2、A plastic wheel can be as tough as a metal one

　　A.useful B.tight

　　C.weak D.strong

　　3、Of all the planets in this solar system,Mercury is nearest the Sun.

　　A.most like B.closest to

　　C.hotter than D.heavier than

　　4、If wool is put into hot water,it tends to shrink.

　　A.disappear B.expand

　　C.break D.contract

　　5 The train came to an abrupt stop,making us wonder where we were

　　A.an uncertain B.a slow

　　C.an unexpected D.a smooth

　　答案：CDBDC