Three-fourths of the surface of the earth＿＿＿sea．
#86267
A
is
B
are
C
were
D
has been
推荐题目
As we all know, smoking ___________ people’s health.
#85724
A
is harmful to
B
do harm fo
C
does harmful to
D
harm
My mother asked me if ______________ a picnic the next week in our school.
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A
there will have
B
there will be
C
we would be
D
we would have
This is Susan and that is Mary. _ my _ .
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A
She's, friend
B
He's, friend
C
They're; friends
D
They're, friend
Lots of medicine as well as equipment such as tents _______ offered to the area since the earthquake occurred.
#85871
A
has been
B
have been
C
is being
D
are being
How close parents are to their children ________ a strong influence on the development of the children's characters.
#85550
A
having
B
had
C
has
D
have