．________ we are aware of the effects that the products have on us, it is time to seriously think about buying them.

A．If only　　 B．Even if　　 C．Now that　　 D．As if

Only after the second tower of the World Trade Centre____ did people know it was not an accident, but an attack of some kind.

A. had hit　　　 B. did fall　　 C. was hit　　 D. was fallen?

假设你将参加学校组织的"My Future"英语演讲会,请按下列提纲写一篇演讲稿,100词左右。

1. 我决心当一名教师, 当教师是我儿时的梦想;

2. 认为和孩子打交道不是浪费时间,而是很幸福的;

3. 虽然教师辛苦,收入不高,但我决心献身教育事业(the case of education)

He finished eating the watermelon with u____________ (难以置信的) speed.

It was a wonder that_________little food saved _________ many lives during the war.

A.so, such　　　 B.such, so　 C.so, so　　 　D.such, such

Our headmaster asked us to discuss the matter immediately, saying it was of 　　 great s_______________.

Which do you enjoy ______your weekends, fishing or watching TV?

A.spending  B.to spend  C.being spent  D.spend

Mary smiled _____________ her mother did when she was Mary's age.
A. as if         B. what         C. the way    D. that

Jack felt unhappy as they all went outing ________ him.

A．except　　 B．but　　 C．without　　 D．besides

Isn't it about time you _____ to do morning exercises?　

A. have begun B. begin　　 C. should begun　　 D. began