—Mum, my little sister is crying all the time. —Mary, be         ! She feels sick. You should take good care of her.

The ice cream tasted so         that the kids asked for some more.

I can________ be a nurse．I’m not a very patient person at all．

Mr Wang is an excellent teacher. He is ______ to spend a lot of time explaining things to us.

I like the color of the sweater, but it’s ________ big.