. Each of the following sentences has one mistake. Identify the mistake by writing the letter A, B, C or D on the answer sheet.
16. The Nelsons asked us to look over their garden while they were away on vacation.
A B C D
17. Do you know the lady which is standing over there?
A B C D
18. John always arrives lately for his class even though he leaves his house early.
A B C D
19. I haven’t enjoyed myself so much since many months.
A B C D
20. Linh made cakes in the kitchen with her mother at this time yesterday.
A B C D
16. The Nelsons asked us to look over their garden while they were away on vacation.
A B C over -> after D
17. Do you know the lady which is standing over there?
A B C which -> who D
18. John always arrives lately for his class even though he leaves his house early.
A B lately -> late C D
19. I haven’t enjoyed myself so much since many months.
A B C D since -> for
20. Linh made cakes in the kitchen with her mother at this time yesterday.
A.made ->was making B C D (thì QKTD với dấu hiệu là at this time + yesterday/ last week/... hoặc một giờ nhất định trong quá khứ)
