1 . ________ by the teacher, they didn’t make such mistakes.

A．Having been warned

B．Having warned

C．Warning

D．Being warned

2 . ______ his head high, the manager walked into the room to attend the
meeting ______ then.

A．Holding; being held	B．Held; holding
C．Having held; held	D．Held; to be held

3 . The lecture ________, a lively question-and-answer session followed.

A．being given	B．having given
C．to be given	D．having been given

4 . Having been attacked by terrorists, ____________________     .

A．the tall building collapsed

B．doctors came to their rescued

C．an emergency measure was taken

D．warnings were given to tourists

5 . ______to work overtime that evening,I missed a wonderful film.

A．Having been asked	B．To ask
C．Having asked	D．To be asked

6 . _____ many times, he finally understood it.

A．Told

B．Telling

C．Having told

D．Having been told

7 . ________ by what the teacher said, tears came to his eyes.

A．Deeply moved	B．As he was deeply moved
C．Deeply moving	D．Being deeply moved

8 . ______that the road was under repair ahead, he had to drive back.

A．Reminding	B．To be reminded
C．Having been reminded	D．Having reminded

9 . The silence of the library is sometimes broken by a sudden cough or the sound of pages ________________.

A．turning	B．turned
C．being turned	D．having turned