We can see many ____ in the room. [ ]
A. chairs
B. table
C. boy
D. girl
答案：A
－I really hope to get in touch with Tony.
－Sorry, I don't know ________. [ ]
A. why he loves China
B. how he returned to Canada
C. what his phone number is
D. where be studied Chinese
化妆品生产企业应当建于清洁区内，其生产车间距有毒、有害污染源不少于（）。
