POWER STAGE 1-2

11 The organization ( ) a leading research center for the past 10 years.

• ① was
• ② has been
• ③ will be
• ④ would be

12 The scenery of the town ( ) a lot since we moved here.

• ① change
• ② changed
• ③ has changed
• ④ is changing

13 My wife and I ( ) each other since we were in high school.

• ① got to know
• ② have been knowing
• ③ have known
• ④ know

14 Over the past few years, my mother ( ) a small cottage in the country during the summer.

• ① used to rent
• ② has been renting
• ③ is renting
• ④ would have rented

15 When I was young, ten minutes ( ) enough for me to solve that kind of puzzle.

• ① are
• ② is
• ③ was
• ④ have been

16 After their wedding anniversary tomorrow, they ( ) for ten years.

• ① are married
• ② had been married
• ③ have been married
• ④ will have been married

17 By next March Sophie ( ) in the apartment for ten years.

• ① has lived
• ② lives
• ③ will have lived
• ④ will live

18 The old cedar tree ( ) standing here for 500 years before the temple was built.

• ① is
• ② would be
• ③ has been
• ④ had been

20 The secretary told me that Mr. Jenkins ( ) out to lunch and wouldn’t be back until two.

• ① goes
• ② had gone
• ③ have been
• ④ is being

21 By the time I came back from Tokyo, they ( ) to a decision.

• ① come
• ② had come
• ③ have come
• ④ will have come