A.had worked | B.were working | C.have been working | D.worked |
A.I’m not noticing | B.I wasn’t noticing |
C.I haven’t noticed | D.I don’t notice |
A.have been saved; had been treated |
B.be saved; have been treated |
C.be saved; had been treated |
D.had been saved; would have been treated |
A.will build | B.is built | C.has been built | D.is being built |
A.stands | B.standing | C.which stands | D.stand |
A.have enjoyed | B.enjoyed | C.have been enjoying | D.have been enjoyed |
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