I was drawing a horse when Jim __________to my house.
That tennis ball is one of ___________.
She is short.So she sits________ the classroom.
Lin Shuhao,______ NBA star,will continue_______match this season.A an;the B.an;at C.a;the D.the;an
Frank is my pen pal, he _____________ Sydney, Australia.
Tigers like to eat _____________, but koalas like to eat____________.