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）
