Bài tập Tiếng Anh Lớp 12 Global Success - Unit 1 - Phần: Grammar (Có đáp án)

 ANSWER KEY
Exercise 1.
1. were you doing 2. saw 3. was fishing 
4. didn't know 5. looked 6. happened 
7. was filming 8. arrived 9. told
Exercise 2.
3-1-2-4-6-5
Exercise 3.
 1. I played rugby when I broke my arm.
 I was playing rugby when I broke my arm.
 2. I watched the race when Hope won the gold medal and broke the world record.
 I was watching the race when Hope won the gold medal and broke the world 
 record.
 3. Were city beating Arsenal in last night's game?
 Did City beat Arsenal in last night's game?
 4. The referee didn't concentrate when Burton touched the ball with his hand.
 The referee wasn't concentrating when Burton touched the ball with his hand.
 5. In yesterday's Brazilian Grand Prix, Lewis was finishing in second place.
 In yesterday's Brazilian Grand Prix, Lewis finished in second place.
 6. Boxer Joe Foster was fighting over 100 opponents when he retired in 1994.
 Boxer Joe Foster had fought over 100 opponents when he retired in 1994.