The higher the birds flew, _______ we could see them.

The nurse gave ________ the sweets to the children.

Having won the first place in the English examination, Tom ran back home,       .

The audience are _______young people who like pop music at the concert.

．Jack’s room always has the awful smell of an apartment whose windows are________opened.

____ most children nowadays are the only chidren, they tend to be more self-centered．

They had planned to go for a picnic, but because of the rain they had to stay home_______.

Do come here tomorrow_______ we, as planned, will enjoy the wonderful performance together.

.The man to whom we handed the forms pointed out that they had not been ________ filled in.

The great contributions he made______our country is_______worth remembering.

.．As is often pointed out, knowledge is a two-edged weapon which can be used_____________for good or evil.

One of the greatest benefits of Internet friendships is that they are based on common interests, ________ appearance, age or popularity.

.Mary quickly closed the door of her room _______ her father could reach it to keep him out.

The most frightening words in English languages, as it is, are "Out computer is ______________."

The situation is very serious, even if the government tries to pretend ______.

It is the prevention of disease______its successful treatment that has led to the rapid increase of the world’s population.

— What do you think is ______ to happen tomorrow? — Sorry, I don’t know.

I think the talk given by the old scientist is ______ worth ______.

The kite flew ______ in the sky and my father thought _____ of me. 

I think you’ve got to the point where a change is needed , _____, you’ll fail .