A big party was held in NO.18 Middle School last night, the teacher with students _____ singing and dancing happily at the party.
He looks sad. Let’s cheer him up.
It’s very not outside. Why don’t you stay at home?
Do you know the teacher who is having an English lesson.
Let’s buy some more books this afternoon.
—Would you please pass me the sugar? — ____. Here you are.