five days’ climbing in the mountain, they reached ____ they thought was the place they’d been dreaming of.

It _____ he _____ his office.[ ]

What do you think of pollution of the big factory— It’s a serious problem. We should _____ all the people to do something for it.

John stepped on the stage without hesitation ________ he had been preparing for this moment all his life.

Waiter, ____—Wait a minute, sir. That’s $ 80 altogether.