—_______ do you have a sports meet at your school?

—Once a year.

A. How soon????????????? B. How often????????????? C. How long????????????? D. What time

—　　 have you stayed in this hotel?

—Not long, just　　 this Monday.

A. How soon, from　 B. How long, since　 C. How many days, for D. How often, on

A: -              do they play football.  B: -- Always.

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

A: -              do they play football.  B: -- Always.

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

— ____can we board our plane? — In twenty minutes.

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