$\text{1.}$ It's very exciting to fly in the countryside.
$\text{→}$ It's + adj + to-V
$\text{2.}$ I started doing voluntary work 3 years ago.
$\text{→}$ started/ began + V-ing = have/ has + Ved/ P2
$\text{3.}$ We don't have to change the dates of our trip.
$\text{→}$ not necessary = don't have to: ko cần phải
$\text{4.}$ Would you like me to show you how to use it?
$\text{→}$ want = would like: muốn
$\text{5.}$ I spent 2 hours walking to her village.
$\text{→}$ take (sb) + time to-V = spend + time + V-ing
$\text{6.}$ The Museum of Ethnology is visited by millions of tourists every year.
$\text{→}$ Câu bị động thì HTD: S + is/ are/ am + Ved/ P2 + (by)
$\text{7.}$ Jane's sister doesn't make craft as well as her.
$\text{→}$ sau V là adv
$\text{→}$ well là adv của good
$\text{8.}$ Amy suggested going to her uncle's farm at the weekend.
$\text{→}$ suggested + V-ing
