A. will return B. had returned C. will have returned D. have returned
A. took; have been looking B. has taken; am looking C. took; was looking D. has taken; have been looking
A. are living B. have lived C. will live D. will have been living
A. are considered B. will be considering C. will have considered D. would have considered
A. planned B. had planned C. did plan D. was planning
A. are; were B. were; have been C. have been; are D. have been; were
A. had been living B. had lived C. lived D. has been living
A. do you sit; haven’t seen B. did you sit; did not see C. have you sat; have not seen D. have you been sitting; did not see
A. have learned; before B. have learned; since C. learned; since D. learn; after
A. am doing; haven’t finished B. have been doing; haven’t finished C. did; didn’t finish D. had done; didn’t finish
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