He was seriously injured last week and that’s _______ he didn’t participate in the competition.
#79363
A
when
B
how
C
why
D
what
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Water，which seems so simple and common，is________makes life possible.
#79483
A
what
B
that
C
which
D
how
---I’ll ask the teacher about past tense. I’m very puzzled about it. --- That is just _____ most of our classmates have doubt.
#79488
A
what
B
why
C
where
D
how
I’m afraid he is more of a talker than a doer, which is _________ he never finishes anything.
#79378
A
that
B
when
C
where
D
why