—Could you tell me ___________?    

—About three hours.

   A. how long does the meeting last

   B. how long the meeting last

C. how long will the meeting last

D. how long the meeting will last

Nancy doesn’t know ______ next week.

–__________ will the meeting last?

   –Less than an hour.

    A. How far     B. How soon     C. How long    D. How often

—Could you tell me __ ?  

 —Yes, it will start at ten.

A. when will the meeting begin     B. when the meeting will begin

C. where the meeting begins        D. where does the meeting begin

Nancy doesn’t know ______ next week.