_________ there are certainly times when giving up trying is the right thing to do, in most cases all needed is commitment and communication.
#30109
A
Unless
B
Before
C
Although
D
Since
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—You see，I’m poor in maths，you are not good at English，and...—That’s________we should help each other.
#32001
A
when
B
where
C
how
D
what
________ the news, so far, has been good, there may be days ahead when it is bad.
#30763
A
While
B
When
C
Because
D
If