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

A. me to do 

B. me doing

C. me do

Câu 3: These drugs are the best medicine available as a treatment at the moment, ............ they are expensive, unfortunately.

A. although

B. because

C. so

Câu 4: 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 5: ................  I can’t go to the conference as I’ve got to do to Sydney on business.

A. Frankly 

B. Unfortunately 

C. Personally

Câu 6: 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