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.

They were exposed to biased information. Therefore, they didn't know the true story.

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

Quan Ho singing is a Vietnamese style of folk music _____ by UNESCO in 2009.

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

Most oxygen atoms have eight neutrons, but a small amount have nine or ten.

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

Don't waste time _____ for a cheap hotel when you arrive. They are all about the same price.

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

She got terrible marks in the mid-term tests. She _____ harder for them.

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

Some security measures have been _____ to prevent the infection of Corona virus.

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

Many women find it hard to _____ both a job and a family.

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

Nam passed the exam easily _____ it was very difficult.