Unit19 Modern agriculture Ⅰ.单项填空 1.—By what time______you______planting the trees? —By three o’clock that afternoon. A.did;finish B.were;finishing C.have;finished D.had;finished
Unit19 Modern agriculture 目标导引 Ⅰ.单词及短语 against,result,latest,depend,develop,short of,stand for Ⅱ.语法： 强调句型
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