$\text{1.}$ When did you start your hobby?
$\text{→}$ When did + S + V?
$\text{2.}$ My sister doesn't like hóe-riding, because she thinks it is dangerous.
$\text{→}$ think + N/ V-ing + is + adj
$\text{3.}$ What do you think of jogging? It helps me keep fit.
$\text{→}$ Bạn nghĩ gì về đi bộ? Nó giúp mik giữ dáng.
$\text{4.}$ He usually spends his free time making pottery.
$\text{→}$ usually chia HTD
$\text{→}$ spend + time + V-ing
