II.单项填空(共15小题;每小题1分,满分15分)21.The news came to us as _______ great surprise that he had turned __________ writer. A a; a B a; / C. /; a D. /; /
We can't act on your advice. __________, thank you for giving it.
__________ of her family, she passed the entrance exam easily.
—Have great changes taken place in your village? —Yes. A new school was __________ in the village last year.
My English teacher's humor made every student __________.
A __________ is someone elected to speak on behalf of others.