Mike was ill yesterday.He had to________his plan for the holiday.A.draw upB.give upC.carry out
You will realize what I have done for you _____.
As teenagers, we should study hard _____surf the Internet all day.
Please _____ your homework _____ before you hand it in.
An online magazine makes us ______ more paper.
Mum bought me a dress _____ the visit to Hainan Island.