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
推荐题目
Many a student _____ playing games on the playground and only one girl or two _____ reading in the classroom.
#85642
A
are; are
B
is; is
C
are; is
D
is are
Maybe you have been to many countries, but nowhere else ________ such a beautiful place.
#86239
A
can you find
B
you could find
C
you can find
D
could you find
A survey of the opinions of experts ________ that three hours of outdoor exercise a week ________ good for one’s health.
#85979
A
show; are
B
shows; is
C
show; is
D
shows; are
That building is now a supermarket. It ______ a cinema.
#44091
A
was
B
is used to be
C
used to be
D
would be