---There is somebody knocking at the door. Who________ it be?---I’m not sure. It ________ be a postman.
Would you please ________ the children ________ with snake?
The film is one of _____films that I have seen ,I almost slept in the cinema.
The parents __________ food and clothes.
----Was there much ______ in Nanjing last week? ---- Yes, it snowed a lot.
“I find it interesting to read the book” belongs to ______________.