She has the flu（流感）, so she can’t come to the party . .

He made a mistake, but then he took action to change the situation ________ it got worse.

I am used to _______ early and going to bed early. It’s a good habit.

Noticing a boy fall off his bicycle, Mike ran over _____if he was hurt. [ ]

The man jumped into the river quickly and the main reason was ____ his drowning son.