The new School Safety Guidelines states that under no circumstances _______ leave the campus alone.
| A．a student is to | B．is a student to |
| C．a student be to | D．be a student to |
It is not surprising that you are tired. _____, you stayed up until 12 last night.
| A．Instead | B．In fact | C．After all | D．What’s more |
_______ being fun and good exercise, swimming is a very useful skill.
| A．Apart from | B．Rather than | C．In case of | D．In spite of |
It was not until she got home __ Mary realized she had left her books in the classroom.
| A．when | B．that | C．where | D．before |
The train was ten minutes late, so I _______ have run all the way to the station.
| A．couldn’t | B．wouldn’t | C．needn’t | D．mustn’t |
. Jay Chou is _______ that teenagers are all crazy about him.
| A．so an excellent singer | B．a such excellent singer |
| C．such an excellent singer | D．a so excellent singer |