In our childhood, we were often ___ by Grandma to pay attention to our table manners.
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 ______.
The police _____ the lost boy everywhere when he suddenly turned up in a supermarket.