(2013·重庆模拟)—When did your brother begin to show his interest in medicine? —It was a Saturday he noticed his classmate experimenting on a frog in the lab.
The police chief advised his men to keep________ and not lose their tempers.
The headmaster has retired but no one knows who will________him in the post.
______ everyone here, I wish you a pleasant journey back to your country.
— Can I help you with it?— I appreciate your ________, but I can manage it myself.
She has succeeded in gaining ________to the university,which the whole family are pleased with.