【文章內(nèi)容簡介】
答案: were; is (be) a lot of rubbish on the floor so I asked Mary to sweep it up. 解析: there be句型中 be動詞的單復(fù)數(shù)取決于其后的主語, a lot of rubbish(不可數(shù)名詞 ),因此后面謂語動詞要用單數(shù)。 答案: was million tons of coal (be) exploited every year in the city. 解析: 主語為 coal,是不可數(shù)名詞。根據(jù)題意,此處要用被動語態(tài)。 答案: is of the Long M