Ⅰ.单句语法填空
1.Our teacher wanted you to account ________ your absence last night.
2.You are supposed to take your personality ________ account and figure out what kind of job would suit you best.
3.Our workout (体育锻炼) system will ensure ________ you lose weight and build muscles quickly and safely.
4.There is a growing tendency for people to do their shopping on the Internet. But sometimes it's difficult ________ (ensure) the quality of the products.
5.He was ________ (confirm) as captain for the rest of the season.
6.Additional $10 may be paid ________ (confirm) the booking and will be returned on arrival.
7.We are handling some of the hardest problems in the world with this ________ (power) tool.
8.If you have already received this error message, ________ (pressure) BACK on the remote, and then restart the video.
9.The total cost covers advertising, arranging and ________ (confirm) appointments.
10.Three of China's bestknown Internet companies have ________ (apology) for any damage they had caused to society.