1 . All flights ________ because of the snowstorm, we decided to take the train.

A．were canceled

B．had been canceled

C．having canceled

D．having been canceled

3 . These women _____ works of the highest quality, any survey of the 19th century English literature must include them.

A．having produced	B．have produced
C．were produced	D．having been produced

4 . So,______ one year of planning，what made you decide then to go into architecture？

A．having done	B．doing
C．to do	D．done

5 . ________ in the well for five days, the child finally was rescued.

A．Trapped

B．Being trapped

C．To be trapped

D．Having been trapped

6 . ________ a room in the hotel, Mr. Wood went out for a walk around the small town.

A．Taking

B．Taken

C．To take

D．Having taken

7 . _____ on the subject for half an hour, Liu Ying suddenly realized she had done the wrong subject.

A．To be working

B．Work

C．Having been working

D．Have worked

8 . _____a reply he decided to write again.

A．Not receiving

B．Receiving

C．Not having received

D．Having not received

9 . ______several times, the young scientist still kept on making his experiments.

A．Having been failed	B．Having failed
C．Though failed	D．Because of failure

10 . The victims lived temporarily in shelters, and the earthquake ________ everything, they became homeless.

A．destroyed

B．having destroyed

C．destroying

D．to destroy