Do not make the same mistake ____ I did.         

A. so                B. as               C. like          D. that

---You are so lucky.             

---What do you mean ____that?

A. for　　                      B. in　　          C. of　　              D. by

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