---You may find the key to the maths problem on page 107 . ---Ah, it’s so simple . I wonder why I of that .
A survey of the opinions of experts that three hours of outdoor exercise a week -- good for one’s health.
We live day by day, but in the great things, the time of days and weeks so small that a day is unimportant.
Professor James will give us a lecture on the Western culture,but when and where yet.
At present, one of the arguments in favour of the new airport that it will bring a lot of jobs to the area (2009 .江西)
Either you or one of your students to attend the meeting that is due tomorrow. (2009 .湖南)