It will be very convenient to travel in this city when the underground ________ next year.

ld apologize to you for failing to visit youlast week, but I’ve been very busy_____ the past few months.

Teenagers would rather ________ phone calls while businessmen prefer ________ emails to communicate with each other.

York is so crowded and the pollution is so bad— You know,___________ I’m going to quit my job and move to the country

Oh, I have a nosebleed. What should I do — .