câu này dễ như ăn cháo tự làm đi hi hi........

Mark the letter A, B, G, or D to indicate the correct answer to each of the following questions.

London is a/an ____ city. It's a melting pot for people from all parts of the world.

A. international

B. national

C. metropolitan

D. cosmopolitan

Mark the letter A, B, G, or D to indicate the correct answer to each of the following questions.

The waste ____ system here is also innovative. There are no rubbish trucks or waste bins in the street.

A. dump

B. disposal

C. landfill

D. throwaway