______, the conference began.
| A．The candidates having taken their seats |
| B．The candidates had taken their seats |
| C．Taken their seats |
| D．Taking their seats |
When _____ the letter, tears came to her eyes.
| A．she was reading | B．reading | C．she reading | D．read |
With the school rules _____ by the students, the school has taken on a new look.
| A．respected | B．respect | C．were respected | D．respecting |
With so many people ______ around her, the girl felt very nervous and grasped her mother’s hand tightly.
| A．standing | B．having stood | C．stood | D．stand |
________production up by 60%，the company has had another excellent year.
| A．As | B．For | C．With | D．Through |
______ the day going on, the weather got worse.
| A．As | B．Since | C．With | D．While |
Experts insist that packets of cigarettes come with a health warning ______ to them.
| A．be attached | B．attach | C．attached | D．attaching |
_____the problem of land erosion getting more serious, the government is searching for a way to deal with it.
| A．As | B．With | C．When | D．If |
_____the problem of land erosion getting more serious, the government is searching for a way to deal with it.
| A．As | B．With | C．When | D．If |
With Christmas , they found an approach the problem.
| A．approach; in | B．approaching; to |
| C．approached; of | D．to approach; with |
The meeting ______ over, I found her seated at the desk and ______ to music.
| A．to be; listened | B．was; listened |
| C．was; listening | D．being; listening |
The country has already sent up three unmanned spacecraft, the most recent__at the end of last March.
| A．has been launched | B．having been launched |
| C．being launched | D．to be launched |
On Sundays there were a lot of children playing in the park, _______ parents sitting together joking.
| A．their | B．whose | C．which | D．that |
With a lot of difficulties _______, they went to the seashore and had a good rest.
| A．settled | B．settling | C．to settle | D．being settled |
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