2.我们需要吃各种各样的食物。(all kinds of)

1.为了保持健康，我认为我们应当做好这些事情。

(to stay healthy)

5. He has been a student since nine years ago.(对画线部分提问)

            been a student?

4. They have known each other for 8 years.(改为同义句)

They have known each other        2007.

3. We began to learn English three years ago.(改为同义句)

We             English three       years.

2. The Browns have lived here for 10 years.(对画线部分提问)

              the Browns lived here?

1. I have kept the dictionary for two weeks.(用 since短语改写句子)

I have kept the dictionary             .

(   ) 5. - How long has Robert      .

 —Since 2004.

   A. been to Beijing

   B.  become a policeman

   C.  joined the art club

   D.  studied in this school

(   ) 4. He       Luzhou for three months.

   A. has left

   B.  has come to

   C.  has gone to

   D.  has been away from

(   ) 3. Mr Fan       this watch in 2005. He       it for 10 years.

   A. bought; has had

   B.  bought ; has

   C.  has bought; has had

   D.  has bought ; had