Key ponts
1.need to do sth.需要做某事每个人都需要天天运动。
Everyone _needs  to _exercise everyday.

2.spend time/money on sth.花费时间金钱在某事上spend time/money doing sth.花费时间金钱做某事我们不应该花费太多时间玩游戏。
We shouldn't spend too much time playing computer games.Ispent 30 yuan on this book.

3. buy sth. for sb.为某人买东西

4.instead of代替
Eg:我会代替你去参加晚会。
l will go to the party instead of you.5.Rest until you feel better.
until:直到
Eg:我做作业直到我妈妈回家。
l did my homework_ until_my mother camehome.