All planes  _______________    before departure.

Choose the best answer:
It’s no use …………………. him. He never allows anybody …………………. advice.

Fifty years ago, people thought we _________ able to control the weather by the 21st century, but it’s still not possible. 

I .........  on this project for many consecutive days without success.

In this case, I think _______nothing.

They will be able to walk across the river ..............

The AIDS _______ continues to spread around the world. Up to 4,000 people are infected with the HIV virus every single day.

............. my ex would be there, I wouldn’t have agreed to come.

Choose the best answer:

UNICEF ________ supports and funds for the most disadvantaged children.

Why are you always so jealous  ..................  other people?

Choose the best answer among A, B, C or D that best completes each sentence: He asked her …… , but she didn’t have time to visit him just then.

His colleagues gave him a present when he retired.

You won’t pass the examination          you study more.

We’ll live a happier and …… life if we keep our environment clean. 

Boy! _______ away all your toys and  go to bed right now

- “I’m going out now.”

- “  ................ you happen to pass a chemist’s, would you get me more some aspirins?”

If you don’t study harder, you will ____the risk of failing the exam.

People should send their complaints to the head office.

 The judges decided to exclude evidence which had been unfairly attained.

Hung's score on the English test is the highest in the class _    .

Find a mistake in the sentence below.

Children subjected to violence, exploitation, abuse and neglect are in risk of death, poor physical and mental health, HIV/AIDS infection, and educational problems.