I. Open the brackets 
 1. … (you/ever/hold) charity events?
 2. When guests came Mary … (already/set) the table.
 3. Why … (they/lose) the game last Friday? – Don’t worry, they … (win) next year.
 4. You look wonderful! … (you/cut) your hair?
 5. Police … (catch) five poachers in the forest yesterday.
 6. Douglas … (just/break) his arm. He needs help!
 7. The river was so dirty that we … (can/not) swim in it.
 8. My sister … (not/mop) the floor yet. 
 9. There … (be) a terrible hurricane a month ago.
 10. Why … (not/you/tell) me about your exams?