15 câu hỏi
I _________ smoking should be banned, especially in restaurants.
think
have
obtain
get
A big ocean in the world is divided ___________ five different parts: the Pacific, Atlantic, Indian, Antarctic and Arctic Oceans.
into
on
for
with
The director _______ for the meeting by the time I got to his office.
left
had left
leaves
will leave
My mother told me she _______ very tired since she came back from a visit to our grandparents.
was
had been
is
has been
I love learning about _________ life under the sea.
aquatic
balanced
boring
long
Is submarine a ___________ of transport in your country?
distance
depth
means
stake
A large number of jellyfish are _________ stake due to overhunting.
in
at
on
for
This season's _______ include five new plays and several concerts of Chinese and Indian music.
entertainments
entertainer
to entertain
entertaining
Oceans altogether cover 75 __________ of our Earth.
percent
size
experiment
existence
Today’s scientists have overcome many of the challenges of the depth by ________ more sophisticated tools.
use
to use
used
using
We wish _______ to college next year.
go
to go
going
shall go
What should we do ____________ biodiversity?
to maintain
maintain
will maintain
maintaining
They can send submarines to take photographs of animal life and bring back to the __________ for further study.
satellite
surface
device
sample
Organisms play ________ important role in keeping the nature balanced.
a
the
an
x
They will never forget _______ the man-eating shark at the beach.
see
to see
seeing
will see
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