-Our city looks more beautiful!-Yes. Lots of trees and grass ______ since last y
题型：不详难度：来源：
-Our city looks more beautiful!
-Yes. Lots of trees and grass ______ since last year.| A．have been planted | B．are planted | C．will be planted | D．were planted |
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答案
| A |
解析
| 在英文中，有since引导的时间状语，句子的主要成分用完成时态，表示自从某个时候一直做某事，完成时的结构为have+动词的过去分词，故本题选A。 |
举一反三
It’s very warm here in the room. You’d better ______ your coat.| A．take in | B．take away | C．take out | D．take off |
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——I cleaning my bedroom. It’s clean now.
——Wow.When you it?| A．have finished，did，finish | B．finished，have，finished | | C．finish，do，finish | D．have finished，have，finished |
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To _________ nature is to help ourselves , or we will be punished. | A．protect | B．prevent | C．provide | D．pollute |
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The fire was completely ________ shortly afterwards with the help of the firemen. | A．cut down | B．put out | C．give out | D．floated away |
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It is a good habit for us that we should never today’s work till tomorrow.
A put on B. put off C put up D put down |
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