—____________ Jill ______________ on the phone again?
—Yes. He often _____________ on the phone for an hour.

—____________ Jill ______________ on the phone again?

—Yes. He often _____________ on the phone for an hour.

A．Does; talk; talks                         B．Is; talking; talks

C．Is; talking; is talking                      D．Does; talk; talking

—____________ Jill ______________ on the phone again?
—Yes. He often _____________ on the phone for an hour.

1. A.
   Does; talk; talks
2. B.
   Is; talking; talks
3. C.
   Is; talking; is talking
4. D.
   Does; talk; talking

Mary _______ on the phone when her friend went into her room.

A．talked         B．was talking         C．talk             D．is talking