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: ………… people live in the countrysidethan 100 years ago.

A. Less

B. Few

C. Fewer

Câu 2: There were millions of people aroundthe world ............. the football match live on television.

A. watched

B. watching

C. were watching

Câu 3: Doctors have ….........us to cut downon salt in our diets if we want to reduce the risk of getting heart disease.

A. insisted 

B. suggested

C. advised

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: I’m aiming ........... a band 7 in IELTS.

A. on

B. for

C. to

Câu 6: The minister ...................... is responsiblefor education has just resigned.

A. which

B. who

C. what