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

Martin_______ three days doing research on social media before his teacher changed the topic.

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

She failed the University entrance exam _______ her grades were bad.

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

Each form of mass media has had an important ________on society.

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

Students use the library's computers to get access___________ the Internet.

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

It's important that the government ____________ more investment in rural areas.

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

I __________ to the stadium yesterday afternoon to watch the football match between Song Lam Nghe An and Nam Dinh.

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

The pie chart shows the preferred forms of communication recorded in a survey______ in Intel Secondary School in August 2014.