At night we can see stars in the universe．
| A．millions of | B．million of | C．millions | D．million |
Look ! There are so many mistakes in your composition . You ____ have paid attention to it.
| A．may | B．must | C．can | D．should |
At the conference , political leaders from many countries promised to work together to defend the world ________ terrorism and other threats.
| A．for | B．without |
| C．against | D．beyond |
---Alice had an accident on her way to school yesterday．
--- ? She is always careful．
| A．How come | B．Why not |
| C．So what | D．What for |
When I met him the other day，it was the first time we ______ each other since we graduated from school.
| A．saw | B．have seen |
| C．were seeing | D．had seen |
The palace caught fire three times in the last century, and little of the original building now.
| A．remains | B．is remained |
| C．is remaining | D．has been remained |