(  )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