单项选择题
The problem（）when the students refused to do their homework.
A.arose B.aroused C.rose D.raised
单项选择题 Speaker A: Want to come over Thursday for supper? Speaker B:（）
单项选择题 Mickey: You look a little pale. Are you OK? Nancy:（）I feel terrible.
单项选择题 A:Can I do anything for you？ B:（）
