A deaf-and- dumb(聋哑)man ________ some nails, so he entered a store, put two fingers together on the counter and made hammering movements with the other hand.
He had to pause from time to time to wipe the sweat from his forehead, because the air—conditioning system ______________.
____________ everyone here, I wish you a pleasant journey back your country.
— Are you satisfied with his answer? — Not at all. It couldn’t have been ______________.
I’d appreciate ___________ if you could let me know in advance whether or not you will come.
— Why do you choose to work in an international travel agency? — Well, you know, English is my ____________. So it is my best choice.