II. Lựa chọn từ hoặc cụm từ phù hợp nhất để hoàn thành các câu dưới đây bằng cách khoanh tròn A, B, C hoặc D
Question 11: The meat has to _________ when taking out of the fridge.
- A. frost
- B. defrost
- C. be defrosted
- D. be defrosting
Question 12: The US first __________ of the Moon began with the Ranger 4 impactor in 1962.
- A. exploration
- B. explosion
- C. experiment
- D. excitement
Question 13: Don’t you think my jeans need _______?
- A. clean
- B. to clean
- C. cleaning
- D. cleans
Question 14: Artificial intelligence (AI) is an area of __________ concerned with making computers copy intelligent human behaviour.
- A. field
- B. study
- C. reality
- D. technique
Question 15: Do you know who _________ the ball point pen?
- A. invent
- B. invented
- C. inventing
- D. invents