— I drove to Zhuhai for the air show last week.

 — Is that ____________ you had a few days off?

A. why      B. when      C. what     D. where

_____________ you have done might do harm to other people.

  A. That    B. What     C. Which     D. This

You have not yet answered my question _______ I can join in the party tonight．

A．whether         B．if              C．which          D．that

——What made him so upset?

——______she failed in her examination

A. What             B. That              C. Because               D. Whether

Doris' success lies in the fact _________ she is co-operative and eager to learn from others. 

A. which             B. that               C. when               D. Why

 It is none of your business           other people think about you. Believe yourself.

A.how                B.what                  C.which                D.when

Along with the letter was his promise ________ he would visit me this coming Christmas.

A. which               B. that               C. what            D. whether

（2006年普通高等学校招生全国统一考试浙江卷，4） _______ is our belief that improvements in health care will lead to a stronger, more prosperous economy.

  A. As   B. That     C. This      D. It

（宁夏银川一中2008届高三年级第三次模拟考试，23）---Do you have New Concept English Ⅵ in your shop?

   ---Yes, but no more than one copy. Would you like to take ______?

A．it                 B them          C．some          D．one

—He should have come to join in the thorough cleaning.

—He ________, I think. It's not his turn.

A. needn't have to     B. needn't have    C. didn't have to       D. doesn't need to