Mary felt________from the outside world，since she lacked an Internet connection and couldn’t receive any e-mail

You’ve given us a wonderful Chinese dinner, Mrs Li.– ________.

As all people hope, we dream to set up a world_____ people from all countries are treated equally and different views and opinions are accepted.

下列各句中划线词的解释，不正确的一项是（ ）

David has studied hard since last term. — ________ , and ________.