15. — Is your camera like Bill’s and Ann’s?
— No, but it’s almost the same as _________.
A. her B. yours C. them D. their
答：B。此题应用名词性的物主代词，yours相当于your camera。如：Their class-room is bigger than ours.
16. —Is _________ here?
—No, Bob and Tim have asked for leave.
A. anybody B. somebody
C. everybody D. nobody
答：C。anybody任何人，somebody某人，nobody没有久，everybody每个人，所有的人．
17. —ls________student here?
—Yes, all are here.
A. each B. every C. some D. all
答：B。every每一个(强调全部都)，each每个(强调各自)．如：Each student has his own way of learning. 每个学生都有他自己的学法。另外，every只做定语，each既可做定语，也可做主语。
18. They were all tired, but__________ of them would stop to take a rest.
A. any B. some
C. none D. neither
答；C。根据all一词首先排除D项，根据but表示的转折关系可排除A和B。
19. I hope there are enough glasses for each guest to have_________.
A. it B. those C. them D. one
答：D。one指代 a glass~
20. —Have you finished your report yet?
—No, I’ll finish it in _________ ten minutes.
A. another B. other
C. more D. less
答：A。another ten minutes 或 ten more minutes 意为“再用十分钟。”
21. —When shall we meet again?
—Make it _______ day you like, it’s all the same to me.
A. one B. any
C. another D. some
答：B。any作“任何”解。