Dear Sirs,Two weeks ago, I sent you an order for 45 copies of the " Contemporar

游客2025-06-15 24

问题 Dear Sirs,
Two weeks ago, I sent you an order for 45 copies of the " Contemporary English" dictionary, (147) the importance of swift delivery. They should have arrived last week at the latest when the new semester was due to begin.
I have received no acknowledgement of the order, nor have the dictionaries (148).
Failure to receive them on time is causing serious inconvenience.
I shall be glad if you look into this matter as soon as possible and let me know (149) they may be expected. [br]

选项 A、what
B、when
C、which
D、whom

答案 B

解析空格前是及物动词know，因此空格内应填入引导名词性从句的连词。所有选项都是引导名词性从句的连词，但空格后面的句子是完整的，所以只能选择疑问副词when。剩下的选项都是当后面句子不完整时才可使用的连词。

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