----Why ? Where’s the key to the meeting room?
----Dear me! You ______it in the taxi!
| A．had never left | B．didn’t leave | C．never left | D．haven’t left |
__________ the program , they have to stay there for another two weeks.
| A．Not completing |
| B．Not having completed |
| C．Not completed |
| D．Having not completed |
Either the judge or the lawyers ______ wrong on the case at that moment.
| A．is | B．are | C．were | D．was |
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 |