----Mum, what are you cooking? It smells so _______.----Oh, cheese cake, of course!I know you enjoy _______ it.
Please e-mail Jack _____ jacksmith@sina.com.
The girl ________ is my friend. Her name is Lily.
_______ Alice and Bob? They are my classmates.
——Is this Helen's blue hat? ——No. It is _________ hat. _________ is yellow.
The teacher’s name is John Brown . His students call him ________.