If we __________ careful，fire can be dangerous。
#41667
A
don’t be
B
are
C
aren’t
D
won’t be
推荐题目
— What was your brother like when he was young? — He _______ be quiet, but now he’s very outgoing.
#42079
A
was used to
B
used to
C
used by
D
was used for
---- Please tell Jim to call me as soon as you ___ him tomorrow .----All right ,I will .
#39390
A
saw
B
see
C
will see
D
are seeing
Look!One of the children _____ in the river.
#42549
A
was swimming
B
is swimming
C
are swimming
D
were swimming