Tom is （21） little brother, he is only five and （22） know how to read （23）write.One day

Tom is （21） little brother, he is only five and （22） know how to read （23）write.One day

Tom is （21） little brother, he is only five and （22） know how to read （23）write.

One day Mary sees her little brother at the table with （24）pen（25）his hand , and a big piece of paper in front of him.

" （26） are you doing Tom ？ "she （27）. " I'm （28）a letter to my friend, Mike." Says Tom.

" But how can you？" says Mary. " You even don't know how to （29）" " Well, '' says Tom, " It doesn't matter, because Mike doesn't （30） how to read.

（）21.A.Mary’s B.Marys C.Marys’ D.Maries

（）22.A.not B.don’t C.doesn’t D.isn’t

（）23.and B.or C.to D./

（）24.a B.an C.the D./

（）25.on B.of C.at D.in

（）26.Whose B.How C.What D.Who

（）27.asks B.ask C.toask D.asking

（）28.write B.writing C.writing D.writes

（）29.write B.writing C.read D.reading

（）30.knows B.know C.writes D.write