----- Nội dung dịch tự động từ ảnh ----- IV. Find a mistake in cach sentenee: 26. Mai said (A) that she (B) has (C) always dreamt (D) of becomine an English teacher. 27. Look (A) at (B) those grey clouds! It (C) will rain (D) soon, 28. It (A) is expected that all schools (B) have been equipped (C) with laboratories (D) by 2050, u nau 29. Nam (A) told me that he (B)'would be attending (C)g scietice course at 9 A.M (D) tomorrow- 30. My. teacher said (A) the first escalator (B) was produced (C) in the (D) 1890s.