Beijing has got_____ population of more than 13.8 million.

__________ do you exercise every day? 　　　　—More than an hour. 　　[ ]

When you lose your way in the city, you can _________ the policemen _________help.

Are the children going ___________ a holiday trip to London?[ ]

It is reported that women with demanding jobs are almost __________ to suffer a heart attack .