(单选题)

—Could you tell me ______?
—You will stay with an English family and take part in their daily life.

A.how long the exchange visit lasts

B.when I should pay for the exchange visit

C.where I can go sightseeing after class

D.what the best part of the exchange visit is

参考答案：D

参考解析：

考查what引导的宾语从句。句意：“你能告诉我这个课程最好的部分是什么吗？”“你将和一个英国家庭居住在一起并且参与他们的日常生活。”分析句子成分可知，空白处是宾语从句，when意为“什么时候”，对时间进行提问；what对事情内容进行提问；how long意为“多久、多长”，对时间或物体的长短进行提问；where意为“在哪里”，对位置进行提问。根据答句“You will stay with an English family and take part in their daily life可知，此处是在问事情的内容，对事物询问应该使用what。故选D。

知识点：

—Could you tell me ______?—You will stay with an English family and take part in their daily life.

—Could you tell me ______?
—You will stay with an English family and take part in their daily life.