Why ____you ________ (leave) the city ten years ago?
Why did you leave the city ten years ago?
I ________ (wait) for two hours, but she ________ (not come) yet.
I have been waiting/have waited for two hours, but she hasn't come yet.
Mr. Green ________ (teach) English at this school since he ________ (graduate) from that university in 1986.
Mr. Green has taught English at this school since he graduated from that university in 1986.
Lisa ________ (not ride) a camel before.
Lisa hasn't ridden a camel before.
Philip ________ (know) Wendy for 15 years.
Philip has known Wendy for 15 years.
How long______ they ________ (get) married?
How long have they got married?
Mary ________ (lose) her hat and she ________ (look) for it until now.
Mary lost her hat and she has been looking for it until now.
I ________ (try) bungee jumping last year.
I tried bungee jumping last year.
