_____the Internet is of great help, I don’t think it’s a good idea to spend too much time on it.
The two girls are getting on very well and share _______ with each other.
-----Do you have a minute? I’ve got something to tell you. -----Ok, ______ you make it short.
-----Are you happy with your new computer? ----- No, it is _______ me a lot of trouble.
If you really have to leave during the meeting, you’d better leave ____ the back door.