giúp mình bài này với cần gấp:"0 viết lại nghĩa sau đây không đổi,2 câu đầu viết 2 thì HTHT và HTHTTD 1.She started to live in hanoi 2 years ago(for) 2.I have never eaten this of food before(this is) 3.I have never seen such a beautiful girl before(she is) 4.This is the best novel I have ever read(before) 5.The last time we met was 2 years ago ----->we haven't 6.It has been a long time since we last called each other ------>we haven't 7.when did you last score 10 in math?(since) ------->how long 8.this is the first time I had such an exciting trip ------->I have never 9.I haven't seen Anna for 10 days ------>The last