---Do you believe there are aliens?
---i'm afraid not.i don't think aliens ____in space.
a,can find b,can be found c.can be founded d,can't be found
Mary _____many songs at a party.
a.heard sing b.heard to sing c,was heard sing d,was heard to sing
an accident _____on this road last week.
a,has been happened b.was happened c,is happened d,happened
he ______ some pieces of advice,but he ______ to them.
a.gave,didn't listen b.was given,wasn't listened
c.give ,wasn't listened d.was given ,didn't listen
a story ____by Granny yesterday.
a.was told us b,was told to us c.is told us d,told us
it is reported that China's largest museum of modern art ___at the end of 3010.
a.is built b.will be built c.buids d,will build
the room ____,but now it's dirty again.
a,was cleaned b,is cleaned c.cleaded d.cleans
---now computers _____ in many ways.
---yes,they are very useful
a.use b,will use c.are used d,be used
don't worry.Mary _____the news already
a,was told b,will be told c.has been told d,is told
you ____smoke in the library.
a,are not allowed to b,were to allowed c,are not allowed
d,were not allowed to