1.Concerned (concern) about Lucy, the teacher called her parents to find out why she was so often absent from class.
2.He did nothing but complain (complaint) to me about the food and the service of the restaurant.
3.(2019·大连二十四中月考)Can you describe the effect that high technology has on your life?
4.The project's aim is to clean up polluted (pollute) areas in the world.
5.—Have you got any particular plans for the coming winter vacation?
—Yes.If possible, I'm going to visit my grandparents.
6.—Did you take in the speech the visiting scholar made yesterday?
—Not really.He spoke with an Australian accent(口音) and a bit too fast for me.
7.—He is an excellent cook.
—I couldn't agree more (much).The fish he cooked makes me mouthwatering.