15. It was with great joy _____ he received the news ______ his lost daughter had been found.
We must keep our room clean. Dirt and disease go ____________, you know.
--Could I use your bike, Jack?--Of course, you____________.
Helen is much more kind to her youngest child than to the others,___________ of course, make the others unhappy.
--____________?--He is tall and strong.
She suggested to the police in the police station that__________.