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.
