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: Scientists finally ............... find a curefor the disease after years of research.

A. managed to

B. can

C. could

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

A. of

B. on

C. for

Câu 4: The minister ...................... is responsiblefor education has just resigned.

A. which

B. who

C. what

Câu 5: My parents encouraged .............. this course.

A. me to do 

B. me doing

C. me do

Câu 6: In the past we threw a lot of ourkitchen waste away, but today many items such as plastic bottles and newspapers .............. 

A. are recycled

B. recycle

C. need recycling