﹣Can you tell me when you are going to arrive there?
﹣I'm not sure.But I'll ring you up as soon as I _____there tomorrow.( )
A.arriveB.arrived
C.will arriveD.am going to arrive
This book ___ be yours. Look! Here is your name.
– Listen ! Is Professor Johnson giving a report in the hall? – No, it _______ be him. He has gone to America.
You ________ cross the road when the traffic lights are red.
---- go swimming with Dad , Mum? ----No ,you needn’t. You can go bike riding.
--- Who’s singing in the bathroom? --- It ________ be Mr. Brown. Nobody sings like that except him.