Every possible means_____ been tried，and we find only______ this means can we do it well．
#86084
A
have，in
B
have，by
C
has，in
D
has，by
Ninety-six point five percent of the water on the earth ______ sea water.
#86085
A
are
B
is
C
was
D
were
More than one student ___ that experiment.
#86086
A
has finished
B
have finished
C
are finishing
D
were finishing
The teacher together with his students ___ down at the desk and having a discussion in the classroom.
#86087
A
is sitting
B
sat
C
are sitting
D
would sit
The poster says that a writer and poet ___ to give us a talk on English next week.
#86088
A
is
B
are
C
be
D
will be
E－mail,as well as telephones, an important part in daily communication.
#86089
A
is playing
B
have played
C
are playing
D
play
The number of students in our school about 30 000 and them study hard.
#86090
A
is;a large amount of
B
are;a number of
C
is;large amount of
D
is;a large number of
A library together with 5000 books for the school.
#86091
A
was provided
B
were provided
C
provided
D
have provided
Peter, together with his parents_________every Sunday.
#86094
A
went hiking
B
go hiking
C
goes hiking
D
hiking
—Each of the students, working hard at his or her lessons, _________to go to university.—So do I.
#86095
A
hope
B
hopes
C
hoping
D
hoped
While building a tunnel through the mountain, _______.
#86096
A
an underground lake was discovered
B
there was an underground lake discovered
C
a lake was discovered underground
D
the workers discovered an underground lake
In order to improve English, ________________.
#86097
A
Jenny’s father bought her a lot of tapes
B
Jenny bought a lot of tapes for herself
C
a lot of tapes were bought by Jenny
D
a lot of tapes were bought by Jenny’s father
—Remember that where and when two different English question words___________. —I see, but can you tell us how to use them, sir?
#86098
A
be
B
is
C
are
D
Being
A survey of the opinions of experts___that three hours of outdoor exercise a week___good for one’s health.
#86099
A
show;are
B
shows;is
C
show;is
D
shows;are
–Did you go to the show last night? –Yeah. Every boy and girl in the area_____invited.
#86100
A
were
B
have been
C
has been
D
was
In the city the old ______.
#86102
A
take good care of
B
are taken good care of
C
is taken good care of
D
are been taken good care of
Both Lily and Lucy ______ to the party yesterday.
#86103
A
invited
B
was invited
C
had invited
D
were invited