－_______ was it _______ they discovered the entrance to the underground palace?
 － Totally by chance 

A. What, that      B. How, that     C. When, how     D. Where, that

She ______ herself successfully in court and the judge declared the innocent.

A. expressed 　　　 B. described 　　　 C. replaced 　　　　 D. defended

The room was _______ ―dirty clothes on the floor, and empty bottles and cans everywhere.

A. in a chaos　　 B. in chaos　　 C. in particular　　 D. in mess

—When shall we meet to have a further discussion??

—__________.?

A.At any time when it is convenient to you?

B.At any convenient time?

C.At your convenience?

D.A,B and C?

It is staying up late last night that _______ my being late for work.

　 A. got to　 B. ended up with　 C. devoted to　 D. led to

_______ different life today is from ________ was fifty years ago!

A. What a; what　 B. How; what　　 C. What; what　 D. What a; how

He gave me a job interview ______ my timely help.

　 A. instead of　　　 B. in exchange for　　 C. in return　　　 D. in need of

—When shall we meet tomorrow morning?

　　—Let’s ____ it 8:30. Is that all right?

　　A. set B. meet C. make D. fix

.Robert is indeed a wise man. How often I have regretted ___________________(没有采纳他的建议)!(take)

This company was the first ____portable radios as well as cassette tape recorders in the word.

A．producing 　　　　　　　　　　B．to produce 　

C．having produced 　　　　　　　　D．produced