COMPLETE THE SENTENCES WITH THE PRESENT PERFECT PROGRESSIVE OF THE VERBS IN PARENTHESES
2.How long....Peter....(work) at this problem?
3.Jane....(talk) with her friend on the phone since I came home
4.Little John....(watch) that cartoon for half an hour
5.The secretary....(type) on the computer since the director left the room
6. For out and get some fresh air! You....(sit) there reading all morning
8.I'm sorry we're late. ______you____(wait) long?
9.Haven't you finished that book yet?You....(read) it for more than a week
10.Why are you crying?I....(cut up) onions for the last ten minutes