—Excuse me, will the plane for Beijing within an hour?—I’m not sure. You can go to the Information Desk for help.
Checking your answers before handing in your paper can help you __________ mistakes.
It’s kind __________ Yao Beina to donate her corneas (眼角膜) _________ three people in need.
Many people do not realize the importance of health __________ they have fallen ill.
Robin broke his left leg in the basketball match last week, since then he __________ in bed.
— We must act now because time is __________.— Yes. Let’s start.