—Tom, you look tired this morning. What’s wrong?
—I was so busy that I didn’t go to bed _____ 12 o’clock last night.
| A．until | B．when | C．though | D．unless |
______ foreigners visited Mount Tai one day.
| A．Thousand of | B．Nine thousands |
| C．Nine thousand of | D．Thousands of |
It is important for us ________English well.
| A．to learn | B．learning |
| C．learns | D．learned |
_________ the boy is !
| A．How tall | B．What a tall |
| C．What tall | D．How a tall |
She said she ____ music when her mother came in.
| A．is listening to | B．was listening to |
| C．listened to | D．heard of |
You are twins and you ____ help each other.
| A．should suppose to | B．must suppose to |
| C．are supposed to | D．had better suppose |