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

Mrs. Pike was so angry that she made a ..... gesture at the driver.

A. rude

B. rudeness

C. rudely

D. rudest

Sự hoạt động của khí khổng ở thực vật CAM có tác dụng chủ yếu là

A. Tăng cường khái niệm quang hợp

B. Hạn chế sự mất nước

C. Tăng cường sự hấp thụ nước của rễ

D. Tăng cường CO₂ vào lá

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to the original sentence in each of the following questions.

If it hadn’t been for his carelessness, we would have finished the work.

A. He was careless because he hadn’t finished the work

B. If her were careful, we would finish the work

C. If he had been more careful, we would have completed the work

D. Because he wasn’t careless, we didn’t finish the work