If you _____ regret things you did or didn’t do in the past, then you won’t be able to move forward.
_____ today, he would get there by Friday.
_____ any change about the date, please tell me immediately.
Had you listened to the doctor, you _____ all right now.
It is important that we _____ wild animals.
The order came that the medical supplies _____ to Beijing for the Sars soon.