_________ the girl is only nine, she takescare of her brothers and cooks meals every day.

Has your father got up?—Sorry, I’m not sure. He __________ got up. Please go and see for yourself.

17．—May I surf the Internet tonight? — No, you ______．You must do the exercises．

It’s quite impossible that it will rain tomorrow. But if it _______, I would still go to the park.

More than two _______ parents ________ to attend the graduation ceremony next week.