单项选择题
-- Do you mind if I smoke here? ----（）
A.Yes, please B.Yes, I know. C.No, you can. D.No, not at all.
单项选择题 — Has Mr. Smith had an accident? —（）
单项选择题 She was so interested in the book that she（）it for three hours before she realized it.
单项选择题 （）in the leg, the soldier was sent to hospital at once.
