I. Choose the best answer to complete each of the following sentences. 1. Justine was _____________ to John's birthday party last month. A. invited B. inviting C. invite D. invites 2. Carlos _____________ home before we arrived. A. is going B. will go C. has gone D. had gone 3. Our teeth _____________ at least once a day. A. should clean B. should cleaning C. should be cleaned D. should be cleaning 4. They _____________ then they took a look around the supermarket. A. had lunch B. have lunch C. having lunch D. to have lunch 5. Was this beautiful house _____________ by Mark? A. buy B. bought C. buying D. buyer 6. After he _____________ everything clearly, we started our work. A. had explained B. had explain C. has explained D. has explain 7. These old pictures won't _____________ in the bedroom. A. is hung B. are hung C. be hung D. been hung 8. Before my mother _____________ home, my father had prepared dinner. A. came B. come C. comes D. will come 9. This house and these doors are going to ____________ for Christmas day by the Greens. A. painted B. be painted C. paint D. be paint 10. When I got up this morning, my wife _____________. A. has already left B. already has left C. had already left D. already had left