See the flags on top of the building?That was__________we did this morning.

A.when　　　 B.which　　　　　 C.where　　　　　 D.what ?

You may not like him, but you have got to _________(钦佩) his persistence.

The government has to close those small factories to prevent the water of the river ______.

　　　 A. polluting　　　　 B. from polluting　 C. being polluted　 D. polluted

My mother couldn’t go to school, _____ being poor,the family couldn’t pay for his education.

A.as a result

B.since

C.as

D.for

He often uses ______ ways, which are different from others’, to solve math problems.（ ）

A. similar B. practical　 C. partial　　 D. particular

He likes to go fishing, and has bought a _______.

A. bamboo long fishing pole　　　　 B. long bamboo fishing pole

C. bamboo fishing long pole　　　　 D. fishing long bamboo pole

The warning sign was put there for the _____________ (利益) of the public.

_____ the moonlight they cooked the meat _____ an open fire.

A. To; over 　 B. From; in　 C. In; near 　 D. By; near

Seldom ________ as lonely as now though I have been living in Fuzhou for more than 20 years.

A．have I felt B．I had felt

C．I have felt D．had I felt

—What do you suppose made her so unhappy?

— _______ her wallet.

A. lose      B. Lost     C. Losing      D. To lose