The town official broke ________ for working over time in the search for the trapped people after the earthquake.

Chemical pollution will bring about a threat to agriculture and food chain, and ________ to human health.

When we think of communication , we _________ think of using words---- talking face to face, writing messages, and so on .

---Fish need water to survive; _____ , we human beings rely on air to live.

It is still a problem ______ to hide the stolen money. 

My parents lent me the money. ________, I couldn’t have afforded the trip.   

When Helen saw his tutor nod ________ to her, she calmed down and went on with her performance. 

Jack has a good habit of keeping a diary every day;      he is very good at writing.

He stood        to the painting and studied it        .

--- Tomorrow we’ll go hiking in the mountain to experience nature.---- ___ it rains heavily when we are still halfway?

___ the fact that he found math boring, he was still good at it.        

-----Have you been to New Zealand? -----No, I’d like to, _____.

        ，the wind died down and people began to appear on the street.

________ they heard the shout for help，they rushed out.

To children, good habits do not come        , so parents and teachers need to be their role models.

David apologized to me yesterday. __, I won't forgive him for it was not the first time that he had hurt me.

I know that you’ve given me a rise in my pay, but I still think it’s        enough for what I’ve done for your company.

Do you dress differently because of what you see in advertisements or buy things you might not ________buy？

So hard did he work that he __________made himself ill for a whole week. 

A person, when he or she is young, can’t read __________many books.