1 Do you mind helping me put the chair away ?
-> cấu trúc Do you mind + V-ing
2 It’s years since I enjoyed myself so much.
-> sau since + thì QKĐ
3 There’s no point in getting Ttm to lend you his car
-> cấu trúc there is no point in + V-ing
4 Do we really need to arrive so early?
-> need + to V
5 If you are carefull, you won’t fall.