Not everyone has realized what_______ important part the balance of________ nature plays in their life.
#18673
A
an；the
B
/；the
C
an；/
D
the；/
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It was __________ I went fishing in the open air yesterday.
#19756
A
such a nice weather
B
so nice weather that
C
such nice weather that
D
a nice weather so that
He is _________ and I believe he can keep the secret for you.
#18783
A
determined
B
stubborn
C
reliable
D
frightened
Don’t believe in those ads that you can master a language in one month. Instead, it is a(n) _______process, which may last for years.
#18994
A
rapid
B
instant
C
gradual
D
regular