—You may go to Milan for a free trip.—It’s a very kind_____, but I really can’t accept it.

---Why does Tom’s mother ask him to drink milk? ---She says it’s         drink., and it’s good for his          .

Go down this street and turn ______ / left / . You will see a library in front of you.

－There are quite a        problems here. －Don’t worry. Let me help you.

---It's a pity that Jerry didn't go to yesterday's meeting.---Yes, he missed a good ______of being the chairperson of the Students' Union.