2. A: How long has the chicken been cooking in the oven?
B: The chicken has been cooking in the oven for about twenty minutes.
3. A: How long has Carl Schmidt been playing for Brasil?
B: Carl Schmidt has been playing for Brasil since the start of the season.
4. A: How long has he been cleaning his motorbike?
B: He has been cleaning his motorbike for two hours.
5. A: How long have you been waiting to see the doctor?
B: I've been waiting to see the doctor since nine o'clock.
6. A: How long has your sister been living in Florida?
B: My sister has been living in Florida for over a year.
