—Computer is so useful. It can do almost everything. —Yes, but it ______ what to do.
#44720
A
will tell
B
has known
C
must be told
D
is told
推荐题目
The windows after school is over.
#44799
A
usually close
B
usually closed
C
are usually closed
D
are usually closing
The Eiffel Tower __________ for the 1889 Paris Expo. It is a symbol of the city now.
#44875
A
built
B
was built
C
has built
D
was building
It’s difficult for the village children to cross the river to get to school. We think a bridge_______over the river.
#44469
A
was built
B
should be built
C
has been built
D
is being built
The man is very ill and he has _______.
#44621
A
operate on
B
to be operated on
C
to operate
D
being operated on
Personal computers ______ in 1976. It has changed the whole world.
#44711
A
have invented
B
were invented
C
is invented
D
invented