题目

阅读下面短文，用括号内所给动词的适当形式填空。(必要时可加情态动词或助动词) To the Editor，     We are students of No．10 Middle School．Recently we l         (visit)a paper factory．The paper factory is close to a lake which 2        (give)us drinking water．But we found that the factory 3       (pour)waster directly into the lake．Now the water in it 4       (be)very dirty．Lots of fish 5       (die)．Some farmers living near the lake report that some of their sheep and cows 6      (become)ill and some have already died since they 7     (drink)the water from the lake．So we 8     (write)you this letter to see if you can 9     (do)something about this．We think the pollution must 10     (stop)right now．Thank you!                                                               Yours sincerely，                                                       Zhou Xin and Zhao Qiang 答案： 1．visited         2．gives     3．was pouring    4．is    5．have died 6．have become   7．drank     8．are、writing    9．do    10．be stopped

查看本题答案和解析