This is _______ empty bottle. But it is _______useful one.
new bridge has been built over Changjiang River in Huangshi.
Today the forests are getting ____________, we must ________ down too many trees.
-Did you have a good time that day?-Yes, but the temperature was a little _______ and we didn’t wear warm clothes, so we went home early.
The earthquake ______ when I _______some cleaning.
I hope you _______ me before you _________ to school.