What’s the best way to reach you if I have a question during the day?—I’m glad you ________It’s best if you send me an email

There is a shop. It sells (卖）bananas, apples, pears and oranges.

May I take this book out of the reading room?— No, you ________. You read it in here.[ ]

When people need information, from the news and weather forecasts to travel packages and academic research, the Internet is now the first______ they turn to.

I’d like to be on my own for a while. Do you mind —________. Go ahead.