My sister met him at the Grand Theatre yesterday afternoon，so he ________ your lecture.
| A．couldn't have attended | B．needn't have attended |
| C．mustn't have attended | D．shouldn't have attended |
Dina，________ for months to find a job as a waitress, finally took a position at a
local advertising agency.
| A．struggling | B．struggled |
| C．having struggled | D．to struggle |
Smell the flowers before you go to sleep, and you may just ________ sweet dreams.
| A．keep up with | B．put up with |
| C．end up with | D．catch up with |
First impressions are the most lasting.After all, you never get ________ second chance to make ________ first impression.
| A．a; the | B．the; the |
| C．a; a | D．the; a |
He didn't want to see anybody, so he spent six hours ________ in the small room.
| A．locked | B．to lock |
| C．locking | D．being locked |
________ by the policy, he decided to build a new factory.
| A．Being encouraged | B．Encouraging |
| C．Encouraged | D．Having encouraged |