2. This kind of backpack      ( design) for students is very popular.

1. As we know，Thomas Edison was a great _______  (invent).

A: What's this in English? 

B：It's a piece of paper.

A:       

B：It's made from wood.

A_: 2      

B：Yes. China is the first country to invent paper.

A_: 3      

B：Thanks a lot. But you Americans are great, too.

A：Yes, I think so. The digital camera was invented in America.

B_: 4      

A：It was invented in 1975. 

B_: 5      

A：It is used for taking photos.

1.  

2.  

3.  

4.  

5.

5. They developed a laptop in Japan in 1985.(改为被动语态）
A laptop              in Japan in 1985.

4. This house was built in2000.( 对画线部分提问）

           this house      ？

3. I hope I can achieve my dream.(改为同义句）

I hope my dream can           

2. People sometimes use a radio to listen to the news.(改为同义句）

A radio       sometimes       listening to the news.

 1. The model rocket is made of wood.(对画线部分提问）

                      the model rocket made of?

(   ) 5. A computer desk is used       putting a computer on.

A. in    B. at C. for    D. with

(   ) 4. The boy enjoys reading. He spends most of his money      books.

A. in    B. for C. on    D. with