Only when it rains in summer_______ such beautiful rainbows here.

Daddy, can you buy me a new MP4 when you go to Beijing?—You ______ get one if you are admitted to Fengxin No.1 Middle School.

Mr. Black is talking _______ his students ______ the Chinese Spring Festival.[ ]

I really don’t know_______about it.

Please be quick, or we will have no time ____ lunch.