题干
---- What do you think of Harry, our new roommate?
---- I am not sure, but he is always asking ______ questions and them are very hard to answer.
---- I am not sure, but he is always asking ______ questions and them are very hard to answer.
A：a great many of; a great number of
B：a great many; many of
C：a great number; a great many of
D：a large amount of , many
答案(点此获取答案解析）
B
