To our surprise, the man looking very rude____ his son very carefully.
A. take care B .look after C. attended D .All of the above
The theory he ____ about black hole isn’t understood by most of people.
A .put up B put down C put off D put forward
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
The photo reminded me____ I had seen in London.
A what B .that C. of that D. of what
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
As is known to us, happiness consists ____ appreciating ____ you have.
A. of; what B. in; what C. of; that D. in; that
