1 . When it comes to death, Vincent Van Gogh ________ by others in that his wound didn’t indicate suicide, while Albert Einstein ________ longer but he refused surgery.

A．may have been killed; should have lived

B．should have been killed; should have lived

C．may have been killed; must have lived

D．should have been killed: must have lived

3 . — Will you be free this weekend?
— I’m not sure, but I ________ go to an art exhibition with my parents.

A．will

B．should

C．must

D．may

4 . In science, facts should be proved by experiments and research, and we ______ always believe everything we read and hear -- even if it is a great story.

A．can not

B．may not

C．must not

D．should not

5 . Plenty of things can cause stress, and there are such things as good stress and bad stress. Good or normal stress _________ show up when you’re called on in class or when you have to give a report.

A．must

B．might

C．shall

D．would

8 . People’s abilities differ, but their rights and opportunities ________ be the same.

A．could

B．might

C．need

D．should

9 . In the film The Million Pound Bank Note, Henry Adams is stuck in a foreign country without money and friends, and with nowhere to stay. While this situation _______ seem unusual, it _______ sometimes happen to travelers.

A．may; can	B．should; must
C．would; might	D．had better; ought to