Every year, _______ visitors come to Taixing to enjoy the delicious food, such as Huangqiao cakes, Xuanbao dumplings and so on.

With modern equipment，many mysteries have ________ to light in recent years.

___________ English classes do you have every week?— Five.[ ]

There is ______ “f” and ______”u” in the word “four”.

It’s time _____supper now. [ ]