( )1. It is requested that a lecture ________ on this subject.
A. should be given B. should give
C. should be giving D. gives
( )2. The teacher forbade the students to let ________ fireworks in the school.
A. out B. on
C. down D. off
( )3. In order to spread the news, the school put ________ a notice on the wall.
A. up B. away
C. off D. down
( )4. It was along the Mississippi River ________ Mark Twain spent much of his childhood.
A. when B. that
C. which D. what
( )5.It is a difficult question, so I can't answer you ________.
A. correctly B. patiently
C. immediately D. slowly