Today, computers are really helpful. They ____ everywhere.
#44613
A
use
B
are used
C
used
D
were used
推荐题目
Can’t you see that sign? Taking photos _______ here.
#44371
A
aren’t allowed
B
don’t allow
C
isn’t allowed
D
doesn’t allow
— What a nice watch it is! — It's my birthday present. It in America.
#44480
A
make
B
makes
C
is making
D
is made
The teacher, as well as his students_______ to attend the party last week.
#44856
A
is invited
B
are invited
C
was invited
D
were invited
Personal computers ______ in 1976. It has changed the whole world.
#44711
A
have invented
B
were invented
C
is invented
D
invented
----Smoking should ____________ in school. ----I agree. It’s bad for our health.
#44526
A
be allowed
B
not allow
C
allow
D
not be allowed