英语的完形填空（简单的）

英语的完形填空（简单的）
Peter saved up seven dollars.He wanted to(1)_____a model plane and went to the shop with the money.
On the way,Peter saw a little boy(2)______on the corner of the street.“(3)____are you crying?”Peter asked.
“Three big boys took(4)____my four dollars just now,”the boy said.“I was on (5)____way to buy some books,but now I can't.”
Peter thought of the (6)_____ dollars in the pocket.He thought of the model plane and the poor (7)_______.
Peter wanted to walk away,(8)____he didn't.At last he(9)____four dollars to the boy and went home.
Peter(10)____happy.Do you know why?He was happy because the little boy was happy.
( )1.A.sell B.buy C.hold D.bring
( )2.A.cries B.to cry C.crying D.cried
( )3.A.Why B.How C.What D.For
( )4.A.out B.off C.up D.away
( )5.A.my B.their C.his D.a
( )6.A.three B.four C.seven D.little
( )7.A.books B.seven dollars C.three big boys D.boy
( )8.A.and B.or C.but D.so
( )9.A.lent B.gave C.borrowed D.took
( )10.A.becomesB.looking C.feels D.felt
最好说明一下为什么,