Manypeoplesaythattheyhaveseenflyingsaucers（飞碟）inthesky.1canthesethingsbe?Somepeoplethinkthattheyarespaceshipsfromotherplanets.Doctors2thatperhapstheyareonlyaweaknessoftheeyes.Itispossiblethattheyare

Manypeoplesaythattheyhaveseenflyingsaucers（飞碟）inthesky.1 canthesethingsbe?

Somepeoplethinkthattheyarespaceshipsfromotherplanets.Doctors2 thatperhapstheyareonlyaweaknessoftheeyes.Itispossiblethattheyareourownplanes3 veryhigh.Oraretheybirdswiththesun’slightonthem?

Butsomepeoplesaythattheyhaveseenthem4.Theyhaveseenbeings（人）getoffthemandwalkaround.Theyhave5 tothosebeings,sometimesinEnglish.Peoplehave6 photosofflyingsaucersandofthesebeings.Wehaveseenthephotos,butsometimesthepeoplehadtotakethemina7.Childrenhaveseenflyingsaucers,andevendogshaveseenthem.Perhapswedonotthinkthatthe8 ofchildren,ordogsareimportant.Butschool-teachershave9 seenthemandAirForceofficersand10 policemen.Mustwenotlistentothesepeople?

A.How

B.What

C.Which

D.Where

A.say

B.prove

C.know

D.understand

A.rising

B.flying

C.risen

D.flown

A.fly

B.turn

C.land

D.move

A.flown

B.gone

C.come

D.spoken

A.received

B.bought

C.taken

D.sent

A.horse

B.hurry

C.colour

D.way

A.opinions

B.discussions

C.suggestions

D.needs

A.often

B.hardly

C.also

D.still

A.yet

B.even

C.so

D.then