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There is no doubt _________ the world climate has been changing in recent years.
#32547
A
that
B
what
C
if
D
whether
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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
Is _____he said really true?
#34678
A
that
B
what
C
why
D
whether
________ 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
Even in winter the roadsides were places of beauty, _______ countless birds came to feed on the berries and on the seed heads of the dried weeds rising above the snow.
#30390
A
which
B
when
C
where
D
what
Are they coming to help us?-- _____
#34141
A
I do so
B
I do hope
C
I hope they do
D
I hope so