6. He is a man __ no one has a better right to speak.

A. whom

B. to whom

C. than who

D. than whom

7.______ would have known the answer.

A. Clever anyone

B. Anyone clever

C. Anyone is clever

D. Clever is anyone

8. Why are you still smoking? You _______.

A. should have given up it

B. should have given it up

C. ought to have given up it

D. should given it up

9. No visitor or relative can enter the patient’s room unless _____ by the doctor.

A. they are invited

B. he is invited

C. invited

D. been invited

10. The sick _______and the lost _____.

A. have cured; have found

B. has cured; has found

C. have been cured; have been found

D.has been cured; has been found

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