用适当的副词或介词填空。

The accident is reported to have occurred ________ the first Sunday in February．

用适当的副词或介词填空。

My father is leaving ________ Shanghai on business tomorrow．

用适当的副词或介词填空。

－You are so lucky．

－What do you mean ________ that?

用适当的副词或介词填空。

He often says some bad things about others, so I am fed ________　________ what he says．

用适当的副词或介词填空。

Thank you ________ sending me such a nice present．