Small sailboats can easily turn over in the water　　　　　 they are not managed carefully.?

A.though　　　　　　　　 B.before　　　　　　　　 C.until　　　　　　 D.if

What he has done is really ____. Now his parents are _____ him.

A. disappointing; disappointed at　 B. disappointing; disappointed about

C. disappointing; disappointed with D. disappointed; disappointing by

My sister is working in the power plant that _____ for just one year.

A. was used　　　 　 B. has been used　　 C. is used　　 　D. has used

The rescue party ____ four days later when no traces of the missing hikers could be found.

A. gave up their hopes         B. put away their hopes

C. cherished hope            　 D. gave up hope

The man insisted _________ a taxi for me even though I told him I lived nearby.

A. find 　　　　　　 B. to find 　　　　 C. on finding 　　　　　 D. in finding

It is _______ to rain because there are a lot of dark cloud in the sky.

A. possible　　　　　　 B. likely　　　　　 C. probably　　　　　 D. sure

Whether we’ll hold the sports meet depends on the weather, _____?

A. won’t we　　　 B. shan’t we　　　　 C. doesn’t it　　　 D. won’t it

Last Sunday he made a promise ________ he was free he would take me to Qingdao.

A. if

B. that

C. that if

D. whether