1. have agreat time 意为“玩得愉快”，=enjoy oneself, have fun, have a good /wonderful / nice time
have a great / good time in(doing) sth. 做某事很开心
2. ask sb.(not)to do sth. 要求某人(不)做某事
The teachers ask us to do (do)lots of homework.
3. order sth. from 地点“从某地订购食物”
I want to order some books fromthe book store.
4. keep…to oneself 保守秘密
5. unless conj. 除非;如果不
The concert will be held asschedule unless there is a typhoon.= The concert will be held as schedule ifthere is not a typhoon.
6. be afraidto do sth. 害怕干某事
I’m afraid to speak in front ofother people.
be afraid of sth. 害怕某事
He told me not to be afraid ofdifficulties.
be afraid that从句
I’m afraid that I can’t finish ontime