I would appreciate _____ if you could remain silent until spoken to.

A. it               B. that                   C. these                 D. them

 Not only________ attractive but _________ inviting.[��

A. is the scenery there; is the food

B. the scenery is; the food is

C. is the scenery there; the food is

D. the scenery is; is the food

 Be careful with the paper for it ____________.

A. is easily torn      B. is torn easy     C. tears easily       D. tears easy

 — Hi, Mary. Any idea where Bill is?

   — He ______ in the library. I saw him reading books there just now.

A. shall be             B. should have been         C. must be        D. might have been

 I tried to call up my relatives in Kyrgyzstan where an unrest(动乱) was going on, but couldn’t _________.

      A. go through   B. get over         C. get along           D. get through

 On the long journey, Peter ______a most interesting guide .We all had a wonderful   

time .

A. practised           B. behaved            C. proved            D. conducted

 The seller would sell the coat for five dollars, but the customer ______ four dollars．

A. asked           B. offered              C. charged             D. sold

 —I am sorry I didn’t do a good job．

—Never mind．________, you have tried your best

A. Above all    B. In all                     C. At all            D. After all

 Full use should be _______the natural resources to combat the energy crisis. 

A. made of            B. had of    C. taken of    D. done with

 Our classroom is very clean. Do you know who＿＿cleaned it﹖

A. was it that  B. it was that C. was it who       D. he was