Susan’s parents bought a large house with a swimming pool. It ______be very expensive.

--- The task is challenging and demanding. Who do you think can make it? --- _______ my partner have a try? I think she is the right person to do it.

According to the traffic rules, you _________ wear the safe belt while you are driving.

—We need a person badly to be in charge of this design.—________ the new comer have a try?

If you often go to a gallery, it ______ well change forever the way you look at art.