Shall we the singing That’s a good idea. Let’s them.

The light in his office is still on. Do you know —In order to prepare for tomorrow’s meeting.

Excuse me, have you seen ________ lovely cat—Is it ________ black cat Just now I saw it sleeping under the table.

The traditional view is_____we sleep because our brain is” programmed” to make us do so.[ ]

The experts present at the conference all insisted that greenhouse gas emissionbe reduced from now on．