Giúp mk vs, mk đang cần nộp bài gấp; 1. Mark the letter a,b,c or d on your answer sheet to indicate the correct answer to each of the following questions: We need to take_____to help preserve historical buildings A. distance B. action C.activity D. condition 2. Number/ Vietnamese student/ study/ overseas/ increase/ considerable/. A. The number of Vietnamese students studying overseas has increased considerably B. Number of Vietnamese students to study overseas has increased considerably C. The number of Vietnamese students study overseas has increased considerable. D. The number of Vietnamese students studying overseas have increased considerable. 3. Tìm lỗi sai: Nam asked Mai what he can do to help her. A.asked B. to help C. her D. he can 4. Mark letter a,b,c or d on your answer sheet to indicate the sentence that is closest in meaning to the original sentence in each of the following questions: Unless you see Tom, you will not know the truth. A. You will not see Tom, so you will not know the truth B. You know the truth, but you will not see Tom. C. You cannot know the truth because you have seen Tom. D. You will know the truth if you see Tom. 5. Tet holiday is the most important traditional festival_____Vietnamese people. A. in B. about C. for D. at " giải giúp mk nha, thank các bạn nhiều"