11.it's the first time we have eaten this kind of food.
12. I have never seen this film before
16 He used to accustom to staying...........
18 my brother can play tennis better than me
19 It took five hours to get to London.
20.She spends twenty minutes doing this work
mấy câu còn lại em chưa hk cấu trúc nên thông cảm cho em ạ. em mới lớp 7 lên 8
