On July 1st，we'll celebrate the ________ birthday of the CPC.（ ）
A．hundredthB．hundredC．hundreds
The 15th Chinese Bridge﹣Chinese Proficiency Competition will be held this year！
That's great！_______ foreign college students are interested in Chinese learning．（ ）
A．Hundred ofB．Thousands
C．HundredD．Thousands of
What do you think of _______ Chinese teacher，Jim？
She's an excellent teacher，I've improved a lot since she taught _______ Chinese．（ ）
A．our；usB．our；ourC．ours；usD．ours；our
Could you take out the rubbish and do the dishes，Tony？
Sure，Mom will be mad if she sees this _________，I think．（ ）
A．matterB．messC．troubleD．difficulty
Would you help us make a plan to explore Tibet？
___________．（ ）
A．No，thanks．
B．Yes，of course．
C．It's very kind of you．
Does he need _____ there at once？
No，he _______ leave so hurriedly because he has enough time．（ ）
A．to go； doesn't needB．go； needn't
C．to go； needn't