3. It’s hard ____ (talk) with him.

2. It’s impossible ____ (live) without water.

1. Do you remember ____ (return) the book tomorrow?

6. The thing now is ____ the right people.

　A. find out B. to find out C. find

5. It’s wrong ____ others.

　A. to laugh at B. laugh at C. laughing at

4. Is there anyone ____ to?

　A. talk to B. to talk to C. talking

3. I was excited ____ from you.

　A. hearing B. hear C. to hear

2. It’s important ____ the truth.

　A. know B. to know C. knowing

1.Tell him ____ the window.

　A. to close B. not close C. close

3.　　　 The first thing was to open the door.

T:　Well, we have went through five main usages of infinitives, and they are “subject, adverbial, 　　

　object, attribute and predictive”. Now let’s read all the examples again.

Step III Practice