Today,we’ll discuss a number of cases ________ parents have much difficulty in communicating with their children.
--Where is Xiao Wang? --I don't know. He__________ be in the library.
Bread and butter____________ for breakfast in many Chinese homes nowadays.
Is this the restaurant ___________ ?
—Will you go fishing with me? —___________.
____the sketch of Xiao Shenyang made a _____has been known to us all.