We __________ that the two substances have combined to form the new material.
| A．suggest | B．conclude | C．concentrate | D．include |
Mr. Smith had taught for many years, and all the students him.
| A．looked up to | B．looked up | C．looked up and down | D．looked to |
Please the invitations as soon as possible.
| A．send up | B．send out | C．send for | D．send in |
If you continue to drive that you will killing yourself.
| A．turn out | B．end up | C．end up in | D．proved |
How did the movie finally ? I couldn’t wait to see the ending.
| A．come out | B．come across | C．come about | D．come in |
I t doesn’t take long to become to these drugs.
| A．drunk | B．addicted | C．loved | D．struck |