题目内容
【题目】I'm looking forward to the National Day. We'll have a __________ holiday.
A.7 days
B.7 day
C.7-days
D.7-day
【答案】D
【解析】句意：我期盼着国庆节，我们将会有一个七天的假期。数字+days，为复数；数字+day与数字-days，此表达方式不对；数字-day，为单数。因为前面有a修饰，故选D。
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题目内容
【题目】I'm looking forward to the National Day. We'll have a __________ holiday.
A.7 days
B.7 day
C.7-days
D.7-day
【答案】D
【解析】句意：我期盼着国庆节，我们将会有一个七天的假期。数字+days，为复数；数字+day与数字-days，此表达方式不对；数字-day，为单数。因为前面有a修饰，故选D。