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If we go on using energy so wastefully, __________ are that our oil wells will be dried up before new energy sources can be found to replace oil.

A. chances             B. opportunities            C. questions                  D. problems

The audiences’ reaction made it _____ that this play was a great success.

   A. evident   B. familiar   C. relevant   D. skeptical.

It was several months ________ I finally realized _______ David had lied to me.

  A. when, that                   B. since, when            C. before, that        D. until, why

It remains _____ whether Tim will be fit enough to play in the finals.

  A. seen        B. to be seen     C. seeing       D. to see

––– I hear Tom ______ playing games recently

––– ______ no wonder he is easy to feel sleepy in class.

       A. is addicted to; There is            B. addicts; There is

C. addicts; It is                   D. is addicted to; It is

Such good use had been       his spare time_________ his English has improved a lot．

   A．made of；as     B．made of ;that     C．made in；that    D．found in；as

With your help, there is no doubt ______ our plan is meant for will work out successfully.

A. what that                 B. whether that          C. that what            D. that whether

Rather than ______ at home , I prefer to go sightseeing in ___________.

    A.stay; so suuny a day    B.to stay; so a suuny day

    C.stay; how sunny a day  D.staying; such a sunny day

His long speech made _____ difficult for the listeners to understand him.

  A. that B. it C. one     D. this

We don’t doubt ________ the boy can ________ the angry teacher.

       A. if; apologize for                                        B. whether; apologize to

       C. that; apologize to                                         D. what; apologize