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
More than one student _____been sent to Japan since 1990. More than one hundred students ______been sent to Japan since 1990.
#86283
A
have; have
B
has; has
C
have; has
D
has; have
There was nobody in the room. Lying on the desk ____ a pair of glasses as well as a letter addressed to his wife.
#85868
A
have
B
were
C
was
D
had
Tom is the only one of the students in our school who_____late this morning.
#86279
A
were
B
was
C
have been
D
are