______ you keep trying till the end, you will never know how strong you are!
#55142
A
Although
B
If
C
Unless
D
Because
推荐题目
         . ?  -He is tall and of medium build.
#55338
A
What does he like
B
What does he do
C
What's the matter with him
D
What does he look like
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