--- Let’s go to play football, shall we?
--- Sorry, I can’t. I must go over the points the teacher explained ______ I forget them.
A. after B. when C. before D. since
You may not understand what they have done, because they ____ a younger generation.
A. belong to B. are belonged to C. are belonging to D. will be belonged to
Misunderstanding may ______ if people fail to communicate with each other.
A. raise B. rise C. arise D. add up
My friend Martin was seriously affected by a strange fever; _____ , he could neither eat nor sleep.
A. after all B. as a result C. on the other hand D. however
Yao Ming, who ______ the Houston Rockets, is working hard to make his dream come true.
A. joined B. joined in C. took part in D. competed in
Much attention should be paid _______ the wild animals as many of them are dying out.
A. protect B. to protect C. protecting D. to protecting
