Thank you for sending us fresh vegetables of many kinds. You have done us a great servic

发布时间:2020-08-14 23:14:08

Thank you for sending us      fresh vegetables of many kinds. You have done us      a great service.
A. 不填;a
B. the;a
C. 不填;不填
D. the;不填

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(答案→)A. 不填;a
B. the;a
C. 不填;不填
D. the;不填
解析: 考查冠词的用法。第一空表示泛指,而第二空构成一个短语do sb. a great service,其意思为“给某人提供好的服务”。Service在这里为抽象名词具体化。
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