从A、B、C、D四个选项中选出可以填入空白处的最佳答案。（每小题1分）
26．—Would you like a drink？ —Oh，yes，please．I'd love ．
A．one B．it C．any D．something
27．—Excuse me，Mr King．You'd better not sm oke here．Look at the sign！
—Sorry，I it．
A．don't see B．didn't see C．hadn't seen D．won't see
28．—Who is he？Is he our new teacher？
—I'm sorry．I don't know and he is．
A．who；what B．who；how C．how；what D．where；how