It is a rule in his family that _______ comes home first should cook the dinner.
— What does the sign over there say? — No person ______ enter the area without the official permission.
It’s the protection for the trees ______ really matters, ______ how many trees are planted each year.
I like this 3G cellphone very much, but it costs almost _______that one.
____ surprised me most was to see so many women crying sadly there.
Although the teacher didn’t mention any names, everybody knew who he was ______.