You can’t complain of being lonely         you don’t make any effort to communicate

with others.

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

 How long do you think _______ the computer company turns out a new product?

A. it will be that    B. will it be until                 C. will it be since     D. it will be before

 — Why do you look so angry?

— He insists on my presence here, but I can see it makes no difference ______.

A. I am here            B. I was here       C. me to be here        D. my being here

 So quickly ____________ is a possibility today may be a reality tomorrow.

A. are science and technology advancing that 

B. science and technology advancing are that

C. are science and technology advancing that what 

D. science and technology advancing what that

 Some women           a good salary in a job instead of staying home, but they decided not to work for the sake of the family.

A. could have made      B. should have made        C. would make   D. must make

 Since 1995,      people call the Year of the Internet, the world has turned flat thanks to the network.

A. when       B. which       C. in which      D. by which time

 The language used in advertisements differs from        used in ordinary readings.

A. which            B. what             C. that             D. it

 Loulan City is not at all    a traveler who has never seen the desert before can expect.

A. that             B. what             C. which            D. where

 －I don’t want to move to that city. It is heavily polluted.

－Pollution is common. The city here is       .

A. no less clean        B. not cleaner      C. no cleaner       D. not less clean

 —He failed again.

   —The        of too much time to computer games leaves too little time for studying.

A. use   B. cost    C. devotion  D. expense