单项选择( )1.Metal------ making machines and many other things.A

单项选择( )1.Metal______ making machines and many other things.A.used to B.is used for C.is used as D.is used to( )2.This CD-ROM can help you learn and have fun _______ .A.at times B.some time C.on time D.at the same time( )3.The package tour _______ everything.Don’t worry about it.A.including B.include C.is covered D.covers( )4.The words _______ by Mr.Li are marked _______ red.A.are written; in B.written; in C.are written; with D.written with( )5.Was the keyboard __________the computer properly?A.connect to B.connected with C.connect D.connected to( )6.My father always listens to the news ______ the radio.A.in B.on C.by D.through( )7.What will the computer ______ in the future?A.looks like B.look C.be looked like D.be like( )8.The brave young man is going to swim across a __________ channel.A.80-meter-wide B.80-meters-wide C.180-meter-wide D.18-meter-wide( )9.______ of them has arrived yet.So I’m afraid that the meeting must be held nexttime.A.All B.None C.Each D.Either( )10.If you __________ very careful,you will fail the game.A.don’t be B.won’t be C.aren’t D.are