— How much did the ticket ___________? — About three hundred yuan. A. spend B. pay C. cost
---Mom, why are you _________my plan to travel around the world? ---Because you’re too young to look after yourself.
---Will books be on paper in 100 years? ---_______. They will be computers.
---Mary, how much did you ______ the new watch? ---300 yuan.
---Linda, how is your physics project _______? ---Very well. I’ll finish it tomorrow.
I hope _______more robots to help people in the future.