We offered him our congratulations ____ his passing the college entrance exams.

A.at               B.on                             C.for                                 D.of

Mr Wang went to Nanjing ____ October,1998 and came back home ____ the morning of Nov.5.

A.at;in                         B.on;at                          C.in;on                        D.by;from

He will come ____ three days.                           

A.before            B.after           C. in           D. later

―????????When do we need to pay the balance ?

―        September 30.

A. In                B. By               C. During             D. Within

  8. _____ the government agrees to give extra money , the theatre will have to close.

    A. Until                                                   B. Unless

    C. Since                                                   D. While

___ he came to study in the university, he has made much progress in the study of English.

A. While               B. When             C. Since             D. After

You are certainly right,____ others may say.                   A. what  B. whatever   C. that    D. as

Let’s walk over——the sun．

A．in B．to C．under D．by

He spoke loudly ____ the audience could hear him clearly.

A. so                        B. that             C. so that          D. in order to

____ to New York, her father has not heard from her.

A. Because she went B. After she went C. When she went  D. Since she went