16. After ______ long search for information on ______ Internet, he found what he wanted to know about Yetis.
A. the; the B. the; / C. a; / D. a; the
17. — What’s the weather like in Xiamen?
— Pretty hot and wet in the summer, but it ______ be quite cold in the winter.
A. should B. can C. will D. must
