Who _____________________, David or his brother

Liu Yu said that he was serious ________ being a professional runner and his parents had nothing ________ his running.

May I take the magazine out of the reading room—No, you can’t. You _________ read it here. It’s the rule.

In our life, we can work hard on one task , and then another. In this way, all your dreams can be realized.

1—You are nice in this dress.—____