Task 7. Put the verbs ib brackets into Present Perfect, Past Simple or present Perfect continuous.
1. Oh no! The children___(cook). Look at the state of this kitchen!
2. How many times Wendy___(be) late for work this week?
3. I'm going to give that cat some food. It___(sit) on the doorstep for hours.
4. I___(do) grammar exercises all morning. I deserve a treat for lunch.
5. You___(not\buy)your mother a present? That's really mean of you.
6. She___(work) in Austalia for 2 years. Then she moved.
7. Now where are my keys? This is the third time I___(lose) them today.
8. You___(ever\play) chess? You should try it. I'm sure it's the sort that you'd like.
9. Oh do be quiet. You___(grumble) all day!
10. Your tennis____(really\improve)! You___(practice) in secret?