Some people like wearing fashionable clothes; ______, some birds like bright feathers.

— You ought to have called him yesterday ．

— Yes，I know I ________.      

A．ought to     B．have to   C．should have           D．must have

Nowadays no one can ignore the power of____, because they can expose the truth to the public so as to solve the problems.

A.   press     B. a press   C .presses   D. the press

The boy is often found _____in reading books.

A. absorbs              B. is absorbed              C. absorbing     D. absorbed

Only the factory ____ yesterday ____  this kind of machines.

A. did we visit; does it produce          B. did we visit; produces

C. we visited; produces                     D. we visited; does it produce

I feel it is your husband who ________ for the spoiled child .

A.     is to blame  B. is going to blame  C. is to be blamed  D. should blame

As is known to us, happiness consists ____ appreciating ____ you have.

A. of; what      B. in; what          C. of; that   D. in; that

So amused ________ that I couldn’t help laughing when I saw the performance given by the children．

A．I felt          B．did I feel        C．I feel           D．had I felt

The photo reminded me____ I had seen in London.?

A what         B .that           C. of that           D. of what?

It will be many years ______ the doctors and medical scientists can find _____ for cancer.

    A . since; cures              B. when; treatments 

C. before; cures             D. until; treaments