I think math is as __________ as English .
| A． important | B．Very important |
| C．less important | D．the least important |
—You look so tired. What’s the matter?
—I was so busy that I didn’t go to bed 12 o’clock last night.
| A．until | B．unless | C．if | D．so |
—Susan, what are the advantages of MP5 players?
—Mom, they are smaller and lighter ______ they can be carried very easily.
| A．unless | B．if | C．until | D．so that |
She is always listening to music ____doing her homework.
| A．as | B．while | C．until | D．though |
Someone called me up in the middle of the night, but they hung up I could answer the phone.
| A．as | B．since | C．until | D．before |
I will go to visit my aunt in England ______ the summer holiday starts.
| A．while | B．since |
| C．until | D．as soon as |