________________of the students who took part in the military training（军训） is 450．
| A．A number | B．A lot | C．Lots | D．The number |
I shall never forget those years ____ I lived in the country with the farmers, ____ has a great effect on my life.
| A．that; which | B．when; which | C．which; that | D．when; as |
Tom along with his classmates ______ for the coming exam.
| A．are preparing | B．are preparing themselves |
| C．is preparing him | D．is preparing himself |
The garden looks more beautiful ____ a lot of flowers coming out.
| A．for | B．with | C．because of | D．as |
I’m afraid this is the best way ____we can think of ____you.
| A．that; helping | B．that; to help |
| C．which; helping | D．which; to help |
All the universities have duty to _______ their students ____of the quick development of the scientific world.
| A．make; known | B．have; understood |
| C．keep; informed | D．find; included |