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

In a hospital, everything have to be very clean.

    A                      B             C                     D

Vitamin C ______ by the human body. It gets into blood stream quickly.

My brother started studying French three years ago.

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

She has lived in London for 20 years so she knows the city like the back of her ______.

Due to the impact of Covid 19 pandemic, many schools ______ full advantage of the Internet.

When people are looking for a great way to (26) ______themselves of boredom, videos found on the Internet are often the perfect solution.

A lot of people used to send ______ cards to their friends at Christmas.