This is ( ) African camel.A.a B.an C.the D.\
This is a book ( )and book is new A.an B.a C.the D./
is this ____ tape player?yes,it is a.a b.an c.the d./
单项选择 What is this,plese?---It is UFO.A.a B.an C.the D\
This is a ( ) useful advice A a B an C the D 应选哪一个
There is [ ] 'm' in the word 'map' A.the B.a C.an D this 说清楚
where is ( ) alarm clock?A an B a C the D this
This is ________great weather,isn't it?A a.B.an.C the.D 不填
I think this is( ) awfl movie.A.(a);B.(an);C.(the);D;(/)应该填哪
this is -------------your notebook A.a b,an C the D\
This is ______ useful book. A. a B. an C. the D/
.This orange is ____ orange.A./ B.a C.an D.the
Look!Is this your ___book?A.a B.an C.the D./