Remember to ______ the lights when you leave your class-room．

　　A．turn on　　 B．turn off　　 C．turn up　　D．turn down

桪avid，is that man your head teacher?

　　桰t ______ be him．He's the tallest in our school．

　　A．mustn't　　 B．can't　　 C．needn't　　 D．won't

He met many problems ______ he was going over his lessons．

　　A．before　　 B．as soon as　　 C．since　　　　 D．while

China is still a ______ country．

　　A．developed　　B．developing　　C．develop　　D．develops

______ it is raining，______ no one leaves the sports ground．

　　A．Although;but B．Because;so C．Because;／ D．Although;／

梂hat should we do first if we want to develop our village?

　　桝 lot of new roads ______，I think．

　　A．must build　　B.have to build　　C．must be built　　D．have built

China's sports stars Yao Ming and Liu Xiang ______ Goodwill Ambassadors (親善大使) of Shanghai．

　　A．has been named　　B．have been named

　　C．has named　　D．have named

Now telephones are very popular and they are much ______ than before．

　　A．cheap　　B．cheaper　　C．cheapest　　D．the cheapest

Please don't stand up in class until you ______．

　　A．were told to　　B．are told　　C．are told to　　D．were told

“You look sad，Kate．”“Yeah，I have made ______ mistakes in my report．”

　　A．a little　　B．little　　C．a few　　 D．few