7 Make the sentences negative and interrogative. 1) You have cut the grass in the backyard. 2) Our boss has signed the trade agreement. 3) The members of the delegation have arrived. 4) The wind has stopped blowing. 5) All the tourists have paid the admission charge. 6) We have invited the chairman of the charitable organization to our meeting. 7) Alar has downloaded this document. 8) The policemen have captured the burglars. 9) Sarah has recovered from her illness. 10) M parents have left for New York. 71​

Sure, here are the negative and interrogative forms of the given sentences:1. **Negative:** Haven't you cut the grass in the backyard? **Interrogative:** You haven't cut the grass in the backyard?2. **Negative:** Our boss hasn't signed the trade agreement. **Interrogative:** Hasn't our boss signed the trade agreement?3. **Negative:** The members of the delegation haven't arrived. **Interrogative:** Haven't the members of the delegation arrived?4. **Negative:** The wind hasn't stopped blowing. **Interrogative:** Hasn't the wind stopped blowing?5. **Negative:** All the tourists haven't paid the admission charge. **Interrogative:** Haven't all the tourists paid the admission charge?6. **Negative:** We haven't invited the chairman of the charitable organization to our meeting. **Interrogative:** Haven't we invited the chairman of the charitable organization to our meeting?7. **Negative:** Alar hasn't downloaded this document. **Interrogative:** Hasn't Alar downloaded this document?8. **Negative:** The policemen haven't captured the burglars. **Interrogative:** Haven't the policemen captured the burglars?9. **Negative:** Sarah hasn't recovered from her illness. **Interrogative:** Hasn't Sarah recovered from her illness?10. **Negative:** Your parents haven't left for New York. **Interrogative:** Haven't your parents left for New York?