You’d better look up the new word in a dictionary____ you don’t know it.
#55486
A
if
B
as
C
though
D
whether
推荐题目
There ________ children playing games in the park. 
#57573
A
has much
B
are many
C
is much
D
a lot of
 Jeff’s sister can’t swim _________ dance.
#55683
A
and
B
but
C
and not
D
or