Present Perfect/Continuous

How much time _____ ?

• have you been waiting
• are you been waiting
• have you waiting
• did you waited

Sam moved to L.A. in 1997. He _____ here for 20 years.

• has been living
• has living
• have been
• had lived

She's exhausted because she _____ since 6:00 this morning.

• has been working
• hasn't been slept
• has been worked
• hasn't been eaten

Jocelyn _____ at that factory last April.

• started working
• has worked
• has been working
• has started to work

How long _____ at this school?

• have you been studying
• have you studying
• did you studied
• you been study

_____ about calling my ex-girlfriend. What do you think?

• I've been thinking
• I'm been thinking
• I've thouhgt
• Have I thought

_____ for three whole hours. When are we going to get home?

• We've been driving
• You been driving
• I've been ridden
• I'm riding my burro

_____ about buying a new car?

• Have you ever thought
• Did you ever thought
• Have you ever thinking
• Have you been thinging

I'm taking my son to the  doctor, because his head _____ for three days.

• has been hurting
• has hurts
• is hurting
• was hurts

Karla _____ the piano since she was six years old.

• has played
• has been played
• have been playing
• has playing