读一读，补全对话。

Chen: Hey! 1.______________ ?

John: We are doing an expriment.

Chen: 2.______________ ?

John: What do ants like to eat?

Chen: That's interesting. .

John: Come and have a look.

Chen: 3._________________?

John: 4._________________. They don't like vegetables.

Chen: Are they eating the candies?

John: 5.______________.They like sweet food.

物理学中存在着许多物理规律，准确地认识物理规律的本质，是学好物理的重要因素之一。如：做匀变速曲线运动的物体，随着时间的增加，其加速度方向与速度方向的夹角（）

A.可能增大

B.可能减小

C.一定增大

D.一定减小