John is fond of swimming. His hobby is different from______.
--Why do you like going to Kunming for a holiday? ---Because the weather there is _____too hot ______ too cold.
When H7N9 bird flu first appeared, people didn't know_______ doctors could cure it.
---Hurry up, _____you will miss the school bus. ---I know that, Mum. I’ll be ready in a minute.
Some people prefer yellow when they hope for__________.
The boy looks nice____white and the red sweater looks good _____the girl.