He left home without saying a word, and _______ worries many people and is to be found out.

John was the only one of his family to ____ that bigearthquake.[ ]

you ____________ doing something orhaving something, you must do it or have it

I’m going to graduate from my school soon, but I’ll it forever.

Experts believe that it will be five or six years ______ the price of houses becomes acceptable for ordinary families.[ ]