-Is Jack on duty today?
-It ____ be him. It’s his turn tomorrow.
| A．mustn’t | B．won’t | C．can’t | D．needn’t |
Last week a tennis ball hit me on the head, but I tried to _______ the pain, believing that it would go away sooner or later.
| A．share | B．realize | C．ignore | D．cause |
Many people tried to leave the country，________there was much violence and a serious shortage of food supply.
| A．where | B．which | C．that | D．what |
After________careful consideration，they finally decided that each child will be offered________university education.
| A．the；a | B．/；an | C．a；an | D．/；a |
You are working too hard. You'd better keep a ________ between work and relaxation.
| A．promise | B．lead | C．balance | D．diary |
Cynthia is not ashamed of what she does,she ends up doing something wrong.
| A．in case | B．even though | C．as though | D．now that |