Viết lại câu :
1 . They need to paint these pieces of funiture .
--> These pieces of ...
2 . Have you gone to school late before ?
--> Is this ...
3 . She went out for some fresh air . ( In order to )
--> ...
4 . my father doesn't type as fast as he used to ( Used to )
--> ....
1 . They need to paint these pieces of funiture . --> These pieces of furniture need painting need + V-ing: cấu trúc này mang nghĩa bị động, có nghĩa là cái gì đó cần được làm 2. Have you gone to school late before ? --> Is this the first time you have gone to school late ? Have/ Has + S + V(pp) +...+ before ? <=> Is this the first time + S + have/has + V(pp) ? 3 . She went out for some fresh air . ( In order to ) => She went out in order to get some fresh air in order to mang nghĩa là "để, để mà" : S + V + in order + (not) to V 4. my father doesn't type as fast as he used to ( Used to ) => My father used to type fast used to (từng, đã từng): chỉ một thói quen, một hành động thường xuyên xảy ra trong quá khứ và bây giờ không còn nữa S + used to + V-inf