English is a language shared by several diverse cultures ,each of____ uses it somewhat differently .
| A．which | B．what | C．them | D．those |
Please, could you leave me alone? Your being here just ________ my trouble.
A. adds in B adds to C adds up D adds up to
He ________ in a foreign trade company for five years, but he now is a volunteer teacher in a village.
| A．had worked | B．worked | C．works | D．has worked |
The price of food is _________ this year than that of last year.
| A．8% high | B．8% as high | C．8% higher | D．8% as higher |
Will future scientific discoveries ______ for us to live a much longer life?
| A．be made possible | B．make possible |
| C．make it possible | D．be made it possible |
In the meeting, the professor expressed his thanks for the aid he _________ from his students.
| A．received | B．was received | C．have received | D．had received |