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

A. of

B. on

C. for

Câu 1: 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

Câu 2: I’m aiming ........... a band 7 in IELTS.

A. on

B. for

C. to

Câu 3: When you write your essays you ............. copy ideas from books without referencing them properly.

A. mustn’t

B. don’t have to.

C. have to

Câu 4: This factory produces some of .............. cameras in the world.

A. best

B. the best

C. the most best

Câu 5: 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 6: What will you do if ................

A. you don’t get a good IELTS score?

B. you didn’t get a good IELTS score?

C. you won’t get a good IELTS score?