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1. During the 1970s, the air in Los Angeles _____(fill) with smog. 2. A lot of work ____(do) to improve the air in the past 10 years. 3. We will go to the park when it stops_____(rain). 4. This kind of facial masks _____(sell) well and they _____(sell) out already. 5. Dad, please give me a hand to open the door. It ____(not open). 6. My husband ____send me folowers every day before we got married, but now he never does. A should B used to C was going to D was afraid to 7. It's cloudy now. But the weather report says that the clouds will _____ soon. A come out B lift C appear D elevator |
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