He didn’t have your email address. Otherwise he ________ the message to you. Don’t scold him.

Liza ___ well not want to go on the trip --- she hates traveling.

—He should have come to join in the thorough cleaning. —He ________, I think. It's not his turn. 

I really don’t know how to thank you , but for your help, I ______ my lost necklace．

________ the present unemployment continue, the society would face a more troublesome situation.