．We are taught that a business letter should be written in a formal style ____ in a personal one．
#34803
A
less than
B
other than
C
better than
D
rather than
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How can they learn much ________ they spend so much time playing computer games?
#31302
A
although
B
when
C
till
D
until
________ song Jay Chou sings will become popular pretty soon.
#30081
A
What
B
Whatever
C
Whose
D
Whichever
______the Internet is of great help, I don’t think it’s a good idea to spend too much time on it.
#79821
A
If
B
While
C
Because
D
As