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1. Lang Lang began learning to play the piano when he was two years old.(改為簡(jiǎn)單句) Lang Lang began learning to play the piano of two.

() 5. — Did you have a sports meeting yesterday?

—No,we didn’t. It was put off the heavy rain.

   A. instead of   B. because of   C. as for   D. across from

() 4. —— A person’s life is like a road lots of difficulties.

—Yes,so we need positive energy.

   A. by   B. with   C. along   D. during

() 3. Jenny,I can’t go hiking with you I have to help my mum with housework.

   A. so   B. but   C. because   D. unless

() 2.  (2015 •廣東) Could you give me a hand? I can’t complete the task on time your help.

   A. without   B. under   C. with   D. for

() 1. There will be less pollution more people use public transportation.

   A. but   B. though   C. unless   D. if

5. — Where will you go for your summer holiday?

一 I don't know. We are not in (agree) .

4. This problem can (solve) if we work hard together.

3. Mars is a planet that (have) an environment similar to that of the Earth.

2. 一 Do you know the boy who (stand) over there? — Yes. He is Jack’s brother.