Jack and Jim had to wait two more weeks　　 the manager came back．

　 A．before　　 B．until　　　 C．unless　　　 D．when

--John, how did your English exam go?

　　 --I thought I 　　 , but in fact I came in the top 10% in the class.

　　 A. should have failed　　　　　　　　　　　 B. couldn't have failed

　　 C. might have failed　　　　　　　　　　　 D. needn't have failed

—Is it OK to go Dutch for this great dinner?

　 —____.

A.Don’t be nervous.I’ll arrange

B.No,you should go there first

C.Forget it.It’s my treat today

D.OK，it’s my turn to serve today

Nowadays with the development of Our society, more and more hi-tech products 　　　　　　　 to our life．

A．have been introducedB．have introducedC．are introducing D．are introduced

I hope there are enough glasses for each guest to have ______.

A. it 　 B. those　 C. then 　 D. one

We laugh at jokes，but seldom　　　　　 about how they work．_{w_w*w.k_s*5_u.c_o m}

　 A．we think　　　 B．think we　　　

C．we do think　 　　D．do we think

What________me most to the job was the chance to travel.

A．folded 　　　　　　 B．clarified

C．attracted 　　　 D．delight

It was difficult to guess what her　 to the news would be.

A、impression　　 B、reaction　　 C、comment　　 D、opinion

It was foolish of him to ______ his notes during that important test，and as a result，he got punished.

A．stick to B．refer to C．keep to D．point to