采用组合与分解技术的要点是（）。A.舍去税收、企业破产成本等一系列现实的复杂因素B.动

He couldn’t help ________ when he heard the sad news.

A.to cry

B.crying

C.cried

D.cry

The student ______ his head when he couldn't answer the question.

A．scrubbed

B．scraped

C．scratched

D．scorched

He couldn' t use his own car because it ______ then.

A．was being repaired

B．was repairing

C．is repairing

D．has been repaired

What difficulty did he meet when he was trying to help the cat？

A．He couldn't reach the cat．

B．He couldn't come down。

C．He got hurt．

Why couldn't others detect Joey's trouble with his feet when he was eight？

A．Because nobody paid attention to his walking.

B．Because he had received a good treatment already.

C．Because his father didn't tell others.

D．Because he was old enough to control himself.

or by asking her 13-year-old son to drive, putting her child in a dangerous situation. It was Joan's 32ndbirthday, so she decided to go out for dinner with her 35-year-old boyfriend, Donald, as well as her 13-year-old son, Mike. Joan was so happy that she drank two bottles of wine with her boyfriend.When it was time to go home, both Joan and Donald were too drunk to drive.They knew it clearly that both of them couldn't drive home safely after that much wine, so they sat in the back seat and asked Mike, Joan's 13-year-old son, to drive the 2008 Land Rover. Being a driver for the first time in his life, Mike could receive no help from his mom or Donald.They were too drunk to tell him clearly what to do. He started the car nervously, but when he realized he couldn't control the car at all, he was scared and depressed. He decided to stop the car and refuse to drive any further. He called the police for help. When the police arrived, they found the car was stopped right in the middle of the street.

1. Joan has been charged with driving after drinking.()

2. Mike was 35 years old.()

3. Joan and Donald were both too drunk to drive.()

4. It was the first time for Mike to drive.()

5. The police stopped Mike in the middle of the street.()

He couldn't help ______ of his miserable childhood when he saw the film.

A．thinking

B．to think

C．think

D．having thought

He couldn’t do it,____？

A、did he

B、could he

C、couldn’t he

D、was he

He couldn't use his own car because it ______ then.

A．was being repaired

B．was repairing

C．is repairing

D．has been repaired

Why did he stand at the back of the theater after he got back from the car？

A．Because he was still worried.

B．Because he didn't like to sit in the middle of the row.

C．Because he couldn't find his seat again.

D．Because he didn't like to bother the people again.