“If you stop dropping litter, I’ll kiss         pig.” the head teacher promised the students at a school meeting.

一Is this ________ Chinese book?—No，it’s ________ English book.

In order to enter the PE exam, now we spend at _____ least half _____hour a day at school. 

David comes from______ America and he is ______honest boy.

There is _____ “s” and _____ “u” in _____ word “bus”.