Ladies and gentlemen, please remain _____ until the plane has come to a complete
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Ladies and gentlemen, please remain _____ until the plane has come to a complete stop. |
[ ] |
A. seated B. seating C. to seat D. seat |
答案
A |
举一反三
_____ by a greater demand for green products, the food company has set higher standards to ensure the quality. |
[ ] |
A. Driven B. Being driven C. To drive D. Having driven |
The lawn will turn brown unless _____ frequently. |
A. watered B. watering C. water D. to water |
— Where is Tom? I have something important to tell him. — I last saw him____in the library reading. |
A. sit B. seated C. seating D. sat |
Advertisers are increasingly cautious about taking out ads _____ children, and that is hurting children"s magazines. |
[ ] |
A. being aimed at B. aimed at C. having aimed at D. having been aimed at |
We were _____ in the rain, so we were late. |
A. catch B. caught C. catching D. catched |
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