( )1. My little brother didn't go to sleep last night_______ _ he finished his homework.
A. as B. until C. when D. while
( )2. I can't understand this passage________ there are no new words in it.
A. though B. if C. while D. because
( )3.________ come to the office________ w ait for me at home. It's up to you.
A. Either; or B. Both; and C. Neither; nor D. Or; or
( )4.________ Li Ming________ Wang Fang are going to travel to Beijing. Let's see them off at the train station.
A. Neither; nor B. Either; or
C. Both; and D. Not only; but also
