The bell is ringing．Hurry up, _________ you’ll be late for class!

1. A.
   and
2. B.
   but
3. C.
   while
4. D.
   or

The bell is ringing. Mother stops _____ the door.

A.     to open     B. open      C. opening       D. opens

The bell is ringing. Please hurry up, ________ you'll be late for school.

A. that

B. and

C. or

D. but