The rate of racial progress varies in different areas of the country, but in the past ten years _________ more improvement.
| A．there is | B．it is | C．there have been | D．there has been |
Peter was so excited ______he received an invitation from his friend to visit Shanghai.
| A．where | B．that |
| C．why | D．when |
Ladies and gentlemen, please remain _____until the plane has come to a complete stop.
| A．seated | B．seating |
| C．to seat | D．seat |
.It’s raining heavily outside .We are _______to go out for the picnic as planned.
| A．likely | B．unlikely |
| C．impossible | D．possible |
Just be patient. You ________ expect the world to change so soon.
| A．will not | B．needn’t |
| C．can’t | D．may not |
________, his suggestion was taken by all the people at the meeting.
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