4. 每年，数百万的游客来到中国。

              visitors come to China every year.

3. 太黑了，我们什么也看不见。

It's       dark       us                       

2. 他们的船在峡谷的底部。

Their boat is                      the canyon.

1. 在我看来，他是对的。

                      ，he is right.

4. They were watching a basketball match at that time. (对画线部分提问) 

                they       at that time?

3. My mother came to America three years ago. (改为同义句) 

My mother             in America        three years ago.

2. He has lived there since two years ago. (对画线部分提问)

                    he lived there?

1. He is too young to go to school. (改为同义句)

2. He's                 to go to school.

 clear,rise,nature,high,travel

1. My teacher told me that the moon       around the earth.

2. I think the       of the tree is about 6metres.

3. Soon,the clouds       and the rain stopped.

4. The Grand Canyon is one of the wonders of the       world.

5. Smoke was       from the chimney.

6. It's a long       (距离) from my home to the bank.