Your i_____________ of a person or thing is what you think they are like, usually after having seen or heard them.

She _________________ in an accident.(看不见)

I_________________her hurrying away but I didn't try to speak to her.(看见)

His first speech as president __________________ his audience. (给...留下了深刻的印象）

The plants died for _____________water.（缺乏）                                                       

To keep healthy, professor Johnson ______ cycling as a regular form of exercise after he retired.

The visiting Minister expressed his satisfaction with the talks, ________ that ha had enjoyed his stay here.

A. having added                  B. to add           C. adding        D. added

_________ that there was an accident ahead, the bus driver changed course.

A. Warning     B. Having warned     C. To be warned   D. Having been warned

The bridge _________ now over the Changjiang River will be completed at the end of this year.

A. built        B. is being built       C. being built     D. to be built

_________ a child, Elizabeth enjoyed studying art and music.

A. She was      B. When was        C. When being     D. Being