`1`. It is very interesting to water flowers every day.

- It + be + adj + (for SO) + to V: thật ... khi làm gì

`2`. We prefer cleaning the floor to sweeping rooms.

- prefer + Ving + to + Ving: thích làm gì hơn

`3`. It takes my sister 4 days to repair these dolls.

- It + takes/took + SO + thời gian + to V

`4`. My mother is interested in riding a bike to work.

- be interested in + N/Ving: thích làm gì

`5`. If you study hard, you will pass the exam.

= If you don't study hard, you won't pass the exam.

- If 1: If + S1 + V(s/es), S2 + will/can + V nguyên mẫu

`1`. It is interesting to water flowers every day

`-` Cấu trúc : S + be + adj + To do smt

`2`. We prefer cleaning the floor to sweeping rooms

`-` Cấu trúc : S + preder (s) + Ving + O1 than Ving O2

`3`. It is 4 days for my sister to repair these dolls

`-` Cấu trúc : S + be + thời gian + O + to V smt

`4`. My mother is fond of riding a bike to work

`-` Be fond of : Thích thú với điều gì = Be interested in = Be keen on

`5`. If you study hard, you will pass the exam

`-` Câu ĐK loại I

`-` Vế có IF : If + S + V ( HTĐ)

`-` Vế có Model V : S + Model V ( Will , might , should ,... ) + V0 + O

$#Ninetales$