It’s said that an American often starts a speech with a joke, _______ a Japanese seldom does. 
#31649
A
as
B
when
C
while
D
though
推荐题目
In the final exam of last term, our maths teacher Mr.Wu gave us  ________we all couldn’t work out .
#33849
A
such a difficult problem that
B
so a difficult problem as
C
so difficult a problem that
D
as difficult a problem as
____ the temperature might drop, coal was prepared for warming.
#80035
A
To consider
B
Considered
C
Considering
D
To be considered