--Must I clean the classroom now, Miss Wang?--No, you needn’t . It by Bill.
What_______ honest boy! And he is_______ best student of all.
Our teacher asks us _______ soccer on the road. It’s dangerous.
—Will there be a heavy rain on Saturday? —_______. The radio says the weather won’t be fine until next week.
Nobody ________ what the future will be like.
I really don’t know __________.