Complete the sentence. use the present perfect or the present perfect continuos. in the sentences, either form is possible. the post office isn’t far from here. i (walk) there many times. i’m tired. we (walk) for more than an hour. let’s stop and rest a while. mr. alvarez (work) at the power company for fifteen years. he likes his job. i (read) this chapter in my chemistry text three times, and still don’t understand it! my eyes are getting tired. i (read) for two hours. i think i’ll take a break. mrs. jackson (teach) kindergarten for twenty years. she’s one of the best teachers at the elementary school. debbie is writing a letter to her boyfriend. she (write) it since she got home from class. it’s going to be a long letter! i (write) my folks at least a dozen letters since i left home and came here.
2. We have been walking
3. Mr. Alvarez has been working
4. I have read
5. I have been reading
6. Mr. Jackson has been teaching
7. She has been writing
8. I have been writing