11. When I arrived at this house, he__________ A. slept B. sleep C. is sleeping D. was sleeping 12. Two weeks ago, Mr. John__________ his reservations. A. makes B. was made C.made D. has made 13. When I called on her, Mary__________ her room. A. clean B. cleans C. cleaning D. was cleaning 14. Sahar and her husband__________ the movies last Saturday. A. was going B. went to C. they went D. went they to 15. The oil price__________ last month. A. was falling B. had been fallen C. fell D. felt 16. Mr. Han__________ his bags when he found out his flight was canceled. A. packed B.were packing C. was packing D. has packed 17. Going on a business trip last month__________ a lot of fun. A. were B. was C. are D. is 18. Before she died, the old woman__________ to take a walk with her husband daily. A. used B. ought C. might D. should 19. The president__________ a large number of employees and business partners to the reception last week. A. was inviting B. invites C. had invited D. invited 20. The security guard noticed the broken window while he__________ round the warehouse. A. was walking B. walked C. had walked D. walks 21. The first _________ was done by Alexei Leonov, a Russia cosmonaut on March 18th, 1965. It was 10 minutes long. A. spaceward B. spacesuit C. spacewalk D. spaceship 22. Pham Tuan said everything _________ quite strange although he when he was on the ground. A. was - had prepared B. had been - prepared C. was - prepared D. was - has prepared