How long is the project expected to take？A．Four nights.B．Four weeks.C．Ten days.D．Two weeks

How long is the stopover on the flight the speaker booked？A．1 hourB．2 hoursC．9 hoursD．10 h

How long is the warranty of the computer？A．2 months.B．1 year.C．2 years.

听力原文：How long did you live in Seattle of the United States？（A) It is a beautiful city

How long is the supper time for the hotel？A．It"s one hour.B．It"s two hours.C．It"s one and

How long is the mans lease？A．Half a year.B．One year.C．One and half a year.D．Two years.

Student: How long can I have these books？Librarian: This one is on the three－hour－loan;