---Good morning. I’ve got an appointment with Mr Smith in his office. ---Morning. You ________ be Mr Jones. This way, please.

—Do you know where Mary is? I couldn’t find her anywhere.—Well . She        have gone far—her coat’s still here.

 --- Don't worry. I've just sent an ambulance to you. They ________ be there any second.

—A shy boy like John ________ give up a secure job and start his own business!—Yes，nobody had expected that. 

—May I swim here?  — No, you _______.  It is dangerous.