—Why are you standing here, Mrs. White?

—I'm waiting for my son. He _________ back from school.

A. hasn't come         B. won't come          C. doesn't come

—Why are you standing here, Mrs. White?
—I'm waiting for my son. He _________ back from school.
A. hasn't come         B. won't come          C. doesn't come

________ will he back from Beijing?

1. A.
   How long
2. B.
   How soon
3. C.
   How often
4. D.
   How far

－Why are you standing here, Mrs. White?

－I'm waiting for my son. He ________ back from school.

　　 A. hasn't come　　　　　 B. won't come　　　　　 C. doesn't come