Rewrite the sentence without changing the sentence meaning．

(同义句转换。)

A：It usually takes him two hours to do his homework．

B：He usually ________ two hours ________ his homework．

Rewrite the sentence without changing the sentence meaning．

(同义句转换。)

A：The People’s Republic of China was set up in 1949．

B：The People’s Republic of China was ________ in 1949．

Complete the sentences with the phrases in the box in their right forms．

(用方框里中短语的正确形式填空。)

1．Professor Smith ________ on economic development this morning．

2．The concert ________ a piano solo．

3．They ________ do their lessons after a short rest．

4．________ my ________, autumn is the best season in Beijing．

5．Abraham Lincoln ________ bravely ________ the freedom of the slaves．

6．I ________ in Shanghai but I was brought up on a farm．

7．I’ll come to see you ________．

8．The two drivers ________ drive．

9．They are trying their best to ________ pollution．

10．He is ________ for stealing money from a department store．

Fill in the blanks with proper propositions or adverbs．

(用适当的介词或副词填空。)

When an plane takes ________, you are pushed ________ in your seat．

Fill in the blanks with proper propositions or adverbs．

(用适当的介词或副词填空。)

Yang Liwei thought 21 hours was ________ short to stay ________ space．

Fill in the blanks with proper propositions or adverbs．

(用适当的介词或副词填空。)

When Yang Liwei climbed out ________ the spaceship, he smiled and waved ________ the crowds waiting ________ him．

Fill in the blanks with proper propositions or adverbs．

(用适当的介词或副词填空。)

When ShenzhouⅤ let ________ its parachute, Yang Liwei felt the ship was shaking．

Fill in the blanks with proper propositions or adverbs．

(用适当的介词或副词填空。)

When the spaceship separated ________ the rocket, Yang Liwei suddenly got a feeling ________ soaring ________ the sky because of the zero gravity．

Fill in the blanks with proper propositions or adverbs．

(用适当的介词或副词填空。)

Shenzhou Ⅴ lifted ________ at 9 o’clock, on Oct．15th, 2003 in Jiuquan, Gansu Province．

Fill in the blanks with proper propositions or adverbs．

(用适当的介词或副词填空。)

I have heard ________ Professor Smith, but I don’t know ________ him．