— Look at the bird over there! It’s so beautiful!— Wow! It’s a rare crane. It appears in this area.
when you want to talk to your teacher ,you should _ _first.
Linda's father isn't an engineer. Her mother isn't an engineer, ______ .
While the boy ______ down the street, the UFO _____ .
We didn't know the good news _________he told us.
I didn’t know ________.