Why was the old man walking along the platform
Because he was looking for（）.

A．She wrote it last semester.
B．She’ll finish it in a few minutes.
C．She never does assignments early.
D．She isn’t going to write it.

A．It becomes smaller and works faster.
B．It becomes larger and works faster.
C．It works as larger and works slower.
D．It becomes smaller and works slower.