----- Nội dung ảnh ----- Exercise 4: Complete the following sentences using the present perfect continuous forms of the verbs in brackets. Question 1: He _____ (wait) all the morning. Question 2: Richard _____ (do) the same job for 20 years. Question 3: I _____ (study) English for six months. Question 4: Mike _____ (work) in Las Vegas for the last few months. Question 5: It _____ (rain) since lunchtime. Question 6: Helen _____ (read) this book for three days. Question 7: Kevin _____ (look) for a job since he finished school. Question 8: I’m tired of waiting. I _____ (sit) here for one hour. Question 9: He is exhausted because he _____ (work) continuously for more than twelve hours. Question 10: She _____ (sleep) for 10 hours! You must wake her. Question 11: He _____ (read) this book for two hours, but he hasn’t finished it yet. Question 12: That boy _____ (wait) for the bus for half an hour. Shall I tell him that the last bus has already gone? Question 13: They _____ (argue) very excitedly all this time. Shall I come and interrupt them? Question 14: What have you done with my bag? I _____ (look) for it for an hour and I haven’t found it yet. Question 15: I _____ (think) over what you said since yesterday.
