单项选择题
M: Shall we wait for Tom to have supper W: No, he is out having supper.
Why does the woman say" no"（）
A. Because Tom is on his way home. B. Because Tom is having supper outside. C. Because Tom has had his supper already.
单项选择题 There are no lights on and no one answer the doorbell. They（）be at home.
单项选择题 It sounded（）down the rail.
单项选择题 Would you prefer to stay in a private or public（）in the hospital
