The company had about 20 notebook comput

考试题库2022-08-02  41

问题 The company had about 20 notebook computers, but only one-third_______used regularly.A.isB.areC.wasD.were

选项 A.is
B.are
C.was
D.were

答案 D

解析 本题考查时态和主谓一致。句意:这家公司大约有20台笔记本电脑,但是只有三分之一经常被使用。一般来讲,分数作主语时,谓语用单数。但是由前半句about 20 notebook computers可知,此处用复数。本句的时态是过去时,因此应该用were。
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