When the powerful earthquake struck and all lights went out all of a sudden. It seemed _______ the world was at an end.

How do you deal with the disagreement between the company and the customers? -The key the problem is to meet the demandby the customers. [ ]

The plan benefits adult education, which helps to raise the development standard of the whole country.

Lucy was so excited _______she received an invitation from her friend to visit Beijing

You can’t see anything clearly through a telescope unless it ________ correctly to your sight.