Câu hỏi: A recent government report has warnedthat ...................... we act immediately to reduce pollution, there will be serious consequences, for the planet.

A. provided that 

B. in case

C. unless

Câu 1: There were millions of people aroundthe world ............. the football match live on television.

A. watched

B. watching

C. were watching

Câu 2: Learning a foreign language is important because it helps you to understand othercultures better. …………. it can be auseful skill in many areas of work.

A. However

B. Despite this

C. In addition

Câu 3: Do you have any knowledge …………….how our education system works?

A. of

B. on

C. for

Câu 4: Many children these days do not have ahealthy diet................ is possible thatthis is because less healthy foods are cheaper than healthy ones. 

A. What

B. That

C. It

Câu 5: The charity is trying to find ways tosave and ............ the world’sendangered animal species. 

A. the charity is trying to find ways to protect

B. to find ways to protect

C. protect

Câu 6: If I didn’t have to work tonight, .................

A. I’d be able to relax now.

B. I’m able to relax now.

C. I’ll be able to relax now.