Hàm nào sau đây trả về một chuỗi chữ hoa từ một chuỗi chữ thường:

Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences in the following questions.
Jane really wants to buy a new computer. She doesn't have enough money.

I found Japanese to be very hospitable.

It is amazing how quickly the new foreign student adapts to the local culture. A. dangerous

I take my hat off to him for raising so much money for charity.

Merry Christmas and a prosperous and healthy New Year to you all!

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 40 to 44.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 33 to 39.