Personal computers ______ in 1976. It has changed the whole world.
#44711
A
have invented
B
were invented
C
is invented
D
invented
推荐题目
Chinese __________by more and more people in the world now.
#44955
A
speak
B
spoke
C
is spoken
D
was spoken
- It has been so foggy recently? - Cheer up! The fog______ to clear up from tomorrow.
#44472
A
expects
B
is expected
C
will expected
D
was expected
–Our classroom _________ twice a day. So it is very clean.–It is important for us to do this.
#44640
A
is sweeping
B
is swept
C
sweeps
D
has swept
I think students______ to do homework with friends.
#44694
A
is allowed
B
are allowed
C
should allowed
D
should be allowed