When you have borrowed a book from the library, you should keep it well, as if it were ______ of ______.

选用所给句子完成对话。A:  1   What did you do today?

B: We planted trees just now.

A: Oh, I have remembered.  2  where did you work?

B: At the foot of the hill.

A: The one on the other side of the river.

B: How did you get there?

B: On foot.  3  .

A: But what made your clothes so dirty?

B: I fell into the river when I was carrying some water.

A: Bad luck! You’d better go to see a doctor.

B:  4  The river isn’t deep and only my shoes are wet through.

A:  5  .

B: Thanks a lot. I’ll do.

你会植树吗？

　　1．The ground must be just right－neither too wet nor too dry. It's best to plant trees in spring because it's warm.

　　2．Dig(挖) a hole(坑) large enough for the tree. But the hole should not be too deep.

　　3．Knock a long, strong stick(木棒) into the earth next to the hole. Make sure that it is straight.

　　4．Put the tree in the hole. Make sure that it is straight.

　　5．Put the earth back in the hole again. Push it down hard with your foot several times.

　　6．Tie the tree to the top of the stick to keep it straight.

　　7．Water it well as often as possible.

用一个到两个动词词组概括种树的过程：