27. After his wife died, he kept himself _____ from other people and the outside world,
I suppose that when I come back in two year’s time all these old houses will ____ down.
I think your health will soon ______ if you have a holiday on the seaside.
He kept a little notebook, in which ______ the names and addresses of his friends.
--- How do you deal with the disagreement between the company and the customers? --- The key __ the problem is to meet the demand__ by the customers.
“Don’t you believe me?” “______, I’ll believe _______ you say.”