The government of Yancheng isbuilding_________cheap and good houses for the people.

Driving in the mountains can be very dangerous. You can’t be ______careful.

I must ask you accompany me the police station

It has been announced that candidates(应考者) ________ remain in their seats until all the papers have been collected.

Jack, could you help me when the plane will take off on the Internet-I’m sorry , ,my computer doesn’t work..