You should never base anything on a theory that _________ impractical in practice.
#86010
A
is proved
B
prove
C
proves
D
proved
推荐题目
One-third of the country ________ covered with trees and the majority of the citizens _______ black people.
#85697
A
is; are
B
is; is
C
are; are
D
are; is
The number of people invited ______ fifty, but a number of them ________ absent for different reasons.
#85940
A
was, was
B
were, were
C
were, was
D
was, were
You should never base anything on a theory that _________ impractical in practice.
#86010
A
is proved
B
prove
C
proves
D
proved
A library with five thousand books ________ to the nation as a gift.
#86035
A
is offered
B
has offered
C
are offered
D
have offered