________ on-going division between English-speaking Canadians and French-speaking Canadians is ________ major concern of the country
| A．The, / | B．The, a | C．An, the | D．An, / |
I likein the autumn when the weather is clear and bright.
| A．this | B．that | C．it | D．one |
It was the long March Rocket 2F, as reported, sent Shenzhou VI spaceship into space.
| A．which | B．what | C．that | D．as |
Don’t leave the waterwhile you brush your teeth.
| A．run | B．running | C．being run | D．to run |
—May I tell this to my close friend?
—No, you. Never let anybody else know about it.
| A．needn’t | B．shouldn’t | C．mustn’t | D．can’t |
The world is changing fast. I strongly believe that one will easily fall behind he keeps on learning.
| A．unless | B．if | C．when | D．as |