30.---- Do you think it's a good idea to make friends with your students?---- _____ , I do. I think it's a great idea.
--I’m thinking of the test tomorrow. I’m afraid I can’t pass this time. --_________! I’m sure you’ll make it.
The question______new measures should be taken to control the terrible air pollution is______puzzles scientists a lot.
The house rent is expensive. I’ve got about half the space I had at home but I have to pay_______here.
He wouldn’t listen to others’ advice. Obviously, it was his own attitude that _____ his loss.
We had a wonderful holiday; only the last two days were _____spoiled by the weather.