It is useful to be able to predict the extent _____ a price change willaffect supply and demand.

Did your father buy a gift for you on your birthday?—No. I got some gifts that day. They_____________by my aunt and uncle.

She wants to work _____ an actor.[ ]

Is this book yours ? – No it’s his , is inbag .

You mean that is a _______ broadcast, not a recording?