All the following sentences definitely indicate future time EXCEPT _____ .（2013)A．Mother i

All the following sentences definitely indicate future time EXCEPT _____ .(2013)

A．Mother is to have tea with Aunt Betty at four.

B．The President is coming to the UN next week.

C．The school pupils will be home by now.

D．He is going to email me the necessary information.

请帮忙给出正确答案和分析，谢谢！