[    ]

　　A. in, in, at    B. in, at, in

　　C. at, in, at    D. at, at, in

They are going to work ______ the wall newspaper （报纸） tomorrow.

[    ]

　　A. at    B. for    C. in   D. of

The students are doing well ______ English.

[    ]

　　A. at    B. in    C. for    D. on

The great scientist （科学家） worked ______ the problem （问题） for a few days and at last he worked it ______.

[    ]

　　A. out, on    B. on, out    C. out, out    　　D. on, on

She ______ a pen and began ______ her lessons.

[    ]

　　A. take out, to do    B. takes out, doing

　　C. took out, to do    D. took out, does

"You ______ talk here," the assistant (助手) ______ the library (图书馆)says to the students.

[    ]

　　A. mustn't, at    B. can't, for

　　C. don't, with    D. needn't, in

You ______ write a littler to Li Ping. He is going to be here this afternoon.

[    ]

　　A. can't    B. may not    C. mustn't    　　D. needn't

"You ______ get up at six tomorrow," the teacher says.

[    ]

　　A. have    B. must    C. could    　　D. had to

She ______ to do some washing the day after tomorrow.

[    ]

　　A. going    B. doesn't go    C. goes    　　D. is going

I met an old friend of ______, I stopped ______ to him.

[    ]

　　A. mine, talking    B. mine, to talk

　　C. my, to work　　  D. my, talking