Mr． Black walked around and offered help____we were doing an experiment．（ ）
| A． |
while |
B． |
although |
C． |
until |
D． |
unless. |
They met in 2001and got married_____ two years later．（ ）
A．specialB．exactC．hardlyD．exactly
Chinese will be widely used _____ a foreign language around the world．（ ）
A．inB．forC．asD．by
The movie ______ for about 5 minutes，so let's see the next one．（ ）
A．has been onB．has started
C．startedD．began
﹣Don't throw paper on the floor．（ ）
A．Good idea．B．Sorry，I won't．
C．Cheers!D．No way!
July1at of this year is the______ birthday of the CPC（中国共产党）．（ ）
A．ninety﹣fiveB．ninetieth﹣fifth
C．ninetieth﹣fiveD．ninety﹣fifth