A.talked | B.talking | C.is talking | D.who talking |
A.are enjoying | B.are to enjoy | C.will enjoy | D.will be enjoying |
A.wrote | B.has written | C.was writing | D.had written |
A.help | B.have been helping | C.helped | D.was helping |
A.has happened | B.was happening | C.will happen | D.had happened |
A.was | B.have been | C.came | D.am coming |
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