This is a very interesting book with lots of new words. Please ______ it carefully.
| A．look | B．see | C．look at | D．read |
The students hurried to the classroom ________ the bell rang.
| A．until | B．as soon as |
| C．if | D．so that |
She got up early this morning _________ she could catch the first bus.
| A．because | B．so that |
| C．in order to | D．when |
—What about this pink skirt, madam?
—This one is really beautiful. I will buy it ________it's a little expensive.
| A．though | B．but | C．because | D．and |
I’m sorry I’m late again________ the heavy rain.
| A．as | B．so | C．because | D．because of |
______ regular exercise is very important, it’s not a good idea to exercise too close to bedtime.
| A．If | B．As | C．Although | D．Unless |