My birthday is ______ December 30^th. (    )

A．on

B．in

C．at

填空题。
【小题1】My father is working on the computer, but my brother starts to __________ (cry).
【小题2】"Come in, please!" I say. My friend Lucy __________ (come) in.
【小题3】We go to school __________ half past seven.
【小题4】My father __________ (watch) TV every day.
【小题5】Amy often __________ (buy) a card for her teacher on Teachers' Day.

Amy will take her ball _________ Sunday. (    )

A．in

B．on

C．for

She gets up _______ six ________ the morning. ( )

A．at, in

B．at, on

C．in, in

D．in, on

Tree Planting Day is ___ March 12th. (   )

A．on

B．at

C．in