句型31：keep sb. / sth. +adj./ V-ing/ 介词补语/ adv.
You must keep your classroom clean.
Sorry to have kept you waiting.
Can you keep him in the room ?
Keep them here.
He finds it very hard to travel around the big city .
句型33：... not ... anymore/ longer
The old man doesn’t travel any more.
He isn’t a thief any longer.
句型34：What’s the weather like...?
What’s the weather like in spring in your hometown?
句型35：There is no time to do/ have no time to do
There was no time to think.
I have no time to go home for lunch.
句型36：Help oneself to...
Help yourself to some fish.
句型37：used to do
I used to read this kind of story books.
句型38：borrow ... from
I borrowed a Qisu English book from him.
句型39：lend sb. sth. / lend sth. to sb.
He lent me a story book / He lent a story book to me.
句型40：have been to
Have you ever been to Haw aii?