You have to leave now_______ you can catch the early bus.
—— Is Jack back?—— No, but I think he ______ in half an hour.
He often talks ______ but does ______. People like him.
On ______ sides of the streets are a lot of colorful flowers.
—— Do you think there will be robots in school? —— .
There ______ a basketball match between Class One and Class Three this afternoon.