You can help your body by drinking water when you’re thirsty _____drinking extra water when it’s warm out[ ]

The plane is due to take off at 8:00 from theairport.— ______ we can’t get there in time— Try to take another flight then.

When she got back home,she found that her friend _____ her.

Can I help you, sir—Yes, please. Do you have any books on cooking—There are only a few，______.

There are so many beautiful bags. I don’t know ________ first.