Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following question.

Water pollution occurs when chemicals or substances that make water contaminated are discharged directly or indirectly into water bodies without enough ______ to get rid of harmful compounds

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

I have never seen such beautiful pictures before.

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

I last heard this song 10 years ago.

They have lived next door to us for years ______ we hardly ever see them.

People are encouraged to take bottles to bottle-banks, and only shops in supermarkets which use ______ packing.

Mark the letter A, B, C or D in your answer sheet to indicate the underlined part that needs correction in each of the following questions.

When we arrived her house, I found she has been out with her new friend without leaving me a note.

______ liked ao dai, kimono, hanbok help preserve a country’s heritage and educate people about their history.

The ______ of modern technologies has undeniably brought so much comfort to the lives of people.