For more than 450 years, Mexico City has been the economic, culture and political centre of Mexican people.

It can be seen that Urbanization has resulted in ______ problems besides the benefits.

The residents living in this area were warned not to be extravagant with water ______ the low rainfall this year. 

Their daughter soon became a celebrated writer after the publication of her first novel.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. 

The noisy party next door stopped after midnight. 

______, tell him that I have gone to London. 

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. 

While playing hide and seek, the children came across some old photos in the attic.