Have you met Luke recently?
Yes, I (碰巧看见他) in the science museum yesterday afternoon.
It is raining (大)outside. I have to stay at home.
You can't get to school on time, (除非)you hurry up.
It's (健康的)to eat more vegetables and less meat.
My dictionary is lost, could you please (借)one to me?
There will be less (污染)in 100 years.