Question

The students forbidden _____ after class in WC are prevented _____ after school.

A．to smoke; to smoke	B．to smoke; from smoking
C．smoking; smoking	D．smoking; to smoke

Answer 1

B

考查非谓语动词。第一空forbid sb to do sth;第二空考查prevent sb from doing sth 。句意：禁止学生课后在厕所吸烟以及放学后吸烟。