A.take | B.am taking | C.have taken | D.will have taken |
A.did you go; had arrived | B.have you been; would have been |
C.were you; would come | D.are you; was |
A.are introduced | B.have been introduced |
C.were introduced | D.had been introduced |
A.was asked | B.will ask | C.have asked | D.have been asked |
A.always turned up | B.has always turned up |
C.was always turning up | D.was always turned up |
A.was made | B.is made | C.has been made | D.had been made |
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