1 . When _______ population with the past, those with the risk of cancer now actually decrease.

A．compare to

B．comparing to

C．compared to

D．having compared to

2 . When________ from a distance, to tell the truth, the scenery appears more breathtaking.

A．seeing

B．being seen

C．seen

D．having seen

3 . ________ from space, the earth, with water________ 70% of its surface, looks like a blue ball.

A．Seen; covered

B．Seen; covering

C．Seeing; covering

D．Seeing; covered

4 . Mr. Zhang bought his wife a lot of gifts, a gold ring ______.

A．include

B．including

C．included

D．was included

5 . The young man, ______ of committing a crime against the girl, was arrested and interviewed by the police.

A．having suspected	B．being suspected
C．suspected	D．having been suspected

6 . With his finger ______ to the ______ window, the teacher asked: “Who did that?”

A．pointing; broken	B．pointed; broken
C．pointing; breaking	D．pointed; breaking

7 . We finished the run in less than half the time ____.

A．allowing

B．to allow

C．allowed

D．allows

8 . She was so tired from the flight that she went straight to bed, leaving all the luggage _____.

A．unpacked	B．to unpack
C．unpacking	D．being unpacked

9 . Cleaning women in big cities get               by the hour.

A．pay

B．paying

C．paid

D．to pay

10 . Lucy has a great sense of humor and always keeps her colleagues with her stories.

A．amused

B．amusing

C．to amuse

D．to be amused