___from the top of the tower,the south foot of the mountain is a sea of trees
| A．Seen |
| B．Seeing |
| C．Having seen |
| D．To see |
As citizens of our country, it is our duty and responsibility to _______ the legal rights of our own in the election.
| A．stand up for | B．stand out | C．stand by | D．stand up |
Many experts agree that once these treasures are _______ to the air, great harm will be done to them. So they think it better not to unearth the treasures.
| A．exposed | B．threatened | C．constructed | D．conserved |
— You know what I mean?
— ______. Could you please repeat that?
| A．It couldn’t be worse | B．I’ll do my best | C．Go ahead, please | D．I didn’t get that |
With the help of the teachers and classmates, the boy worked hard and finally caught up with his classmates. Now he is _______ all the others.
| A．as a good student as | B．as a student good as |
| C．as good a student as | D．as good as a student |
— When will the new bridge be completed?
— It is said that it _______ by the end of this year.
| A．will complete | B．will have been completed | C．is completed | D．will be completing |