I know the difference between these two words. So () they. A: know B: will C: do D: does

ID card, please.（） A: AHere it is. B: BHere are they. C: CHere you are. D: DGive you.

Most students used to spend so much time （） TV, （） they. A: watch; did B: watching; didn’t C: watching; did

下列域名中，属于教育机构的是__ A: ftp. they. cn B: ftp. gov. Nn C: www.ion D: www.pku.edu.cn

The venture-capital-backed firms are more successful because they.（ ） [A] have invested in innovation [B] are good at stock exchanges [C] have abundant funds [D] have increased employment