The old woman has two sons, one 　　　　 is a teacher.

　 A．of who　　 B．of whom　 C．of which　　　 D．of them

At 　　　young age, Andy took up a part – time job and got paid by 　　　 hour.

A．不填；不填　　　 B．a; 不填　　 C．a; an　　　 D．a; the

“He will answer for it”, the boy said, ________ the man.
A. referred      B. referred to
C. referring      D. referring to

He paid for a seat, when he 　　 free.

　 A．should have entered　　　　 B．could have entered　

　 C．could enter　　　　　　　　 D．would enter

I’d like to study law at university _______ my cousin prefers geography.

A. though　　 B. as 　　　　　C. while 　　　　D. for

She wore a heavy fur coat in such a hot day, ___________ I found quite strange.
A. which B. that C. what D. when  

Will it be long ______ we spend the holiday in the country together?

A. before　　　　 B. until　　　　 C. since　　　　 D. that

他是一个严格的孩子，从来不跟别人开玩笑。(serious)

We thought of selling this old furniture, but we’ve decided to      it. It might be valuable.
  A. hold on to      B. keep up with     C. turn to       D. look after

The cell phone I 　　　 I　　 is on the back seat of my car.

A. thought; had lost　 B. think; had lost　　 C. thought; have lost　 D. think; lost