– I don’t know when ________ the day after tomorrow_ I’ll call you when ______.
John is ______dishonest boy. He has______ useful book.
–What about going for a walk, Sally? -_______
-_____ the population of China?
.-Could you give me a______ on how to learn English_____?
-Robert is _____ to face dangers. Don’t be worried about him. -I think so.