—How do you plan to travel to Beijing, Jack?—I haven’t made up my mind ________to go by plane or not.
#55148
A
if
B
whether
C
when
D
how
推荐题目
I don’t know _____ or not he will come . _______ he comes , I will call you .
#55872
A
whether ; If
B
whether ; Whether
C
if ; If
D
if ; Whether
—Tom isn’t feeling very well. —He seems to have a cold the weather changes suddenly.
#55789
A
before
B
so
C
because
D
if
