单项选择题
A：Can I do anything for you？ B：（）
A.No. You can't do anything for me.B.No. it's alright. I can manage myself.C.Never mindD.It's my pleasure
单项选择题 More than 30 years ago, （）that the region was rich in natural resources。
单项选择题 She walked into the room carefully because she （） waking her husband up。
