Read and judge．（读短文，判断正误，用“T”或“F”表示）

Dear Mary,

      How are you? Thank you for the new shirt.  It's beautiful. I like it. Now I am writing (写) at the

new school. This is a nice school. The trees are green. The flowers are red and yellow. We have a

music room, an art room, a computer room, a canteen and a library. The playground is so big. We

can play football there.

      Oh, it's time to go home now. Let me stop here. Welcome to my school.

                                                                                                                                            Yours,

                                                                                                                                            John

( )1. John is writing to his mother.

(     )2. John has a new jacket.

(     )3. John's school is nice.

(     )4. They don't have a canteen in the school.

(     )5. The playground is big.

甲公司将其开发的商业软件著作权经约定合法转让给乙公司，随后甲公司自行对原软件进行改进，形成新版本后销售。那么，甲公司的行为______。

A．构成侵权，因为甲公司不再享有原软件的使用权
B．不构成侵权，因为对原软件改进后形成了新版本
C．不构成侵权，因为对原软件增加了新的功能
D．不构成侵权，因为甲公司享有原软件的使用权