. “You ___ not be too careful in the exam. Do and check your papers carefully and you ____ not take your papers out of the examination room after the exam.” the teacher told us before the exam.
| A．must; should | B．can; shall | C．must; shall | D．can; could |
When he returned , he agreed to the publisher’s request _______ he should write a book for boys based on the life he experienced.
| A．when | B．that | C．which | D．why |
Look ! There are so many mistakes in your composition . You ____ have paid attention to it.
| A．may | B．must | C．can | D．should |
At the conference , political leaders from many countries promised to work together to defend the world ________ terrorism and other threats.
| A．for | B．without |
| C．against | D．beyond |
---Alice had an accident on her way to school yesterday．
--- ? She is always careful．
| A．How come | B．Why not |
| C．So what | D．What for |
When I met him the other day，it was the first time we ______ each other since we graduated from school.
| A．saw | B．have seen |
| C．were seeing | D．had seen |