The Bunsen Burner is so named because it is thought ___________ by Robert Bunsen.

A. to be invented               B. having been invented

C. invented                     D. to have been invented

You____________ this morning if you really wanted to see it yourself.

A. ought to come     B. mostly     C. almost    D. possibly

Moreover, __________you may hardly believe, the examiners had decided in advance to fail half the students taking part in the exams.

A. which       B. that       C. who       D. whom

—Glad to meet you.

—____________

A. So do I.                  B. How are you?     

C. How do you do?            D. The same to you.

Some of the suspects(嫌疑犯) refused to answer and kept their mouths shut.

A. questioning                   B. being questioned    

C. questioned                    D. to be questioned

I often have conversations with John over telephone, while keep in touch with Tom by__________ letter.

A. 不填;;the    B. 不填;a         C. the;不填    D. the; a

I feel silly in these clothes. Everyone will___________ me.

A. worry about                  B. make fun of

C. get rid of                   D. take interest in

This soup is cold; it needs _____.

       A. to heat            B. to be heated        C. being hot          D. heated

She was noticed ______ the shop.

      A. to enter            B. enter              C. having entered      D. entered

"Have you had supper?"                 "Not yet. The meal_____."

      A. are being cooked          B. is being cooked    C. is cooked         D. are cooked