题目内容
3.I ________ Ken.Jenny and Mary ________ good friends,Jack ______ their teacher.( )| A. | am,is,are | B. | is,am,is | C. | am,are,is | D. | am,is,is |
分析 我是肯,詹妮和玛丽是好朋友,杰克是他们的老师.
解答 答案:C.这里是客观事实用一般现在时,主语I,故am,Jenny and Mary 故are,Jack故is,故答案是C.
点评 be动词意思和用法很多,一般的意思是:是,此种用法,有多种变化形式,is,am,are,was,were,being,been,to be.另外,be动词还有成为的意思.根据句子中不同的人称、数和时间,型态,应该选择相应的be动词.
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