Vòng 1

I.

1. b

2. b

3. b

4. c

5. c

6. a

7. c

II.

1. are => is

2. for => to

3. have been => be

4. married => had married

5. are => be

6. enterng => to enter

III.

1. Because

2. Serious 

3. Many

4. That

5. Instance 

6. Could

7. Before 

8.  From

9. Be

10. Hospital 

IV.

1. How long are you going to stay (here)?

2. How are you getting on?

3. CD prided himself on being very famous more than a hundred years ago

V.

1. erroneous

2. imprisonment

3. irksome