A.perform | B.should perform | C.will perform | D.performed |
A.know | B.knows | C.have know | D.is |
A.had never left | B.didn"t leave |
C.never left | D.haven’t left |
A.have reminded | B.are reminded |
C.were reminding | D.had been reminded |
A.The;have increased | B.A;have increased | C.The;has increased | D.A; has increased |
A.understands | B.understood | C.understand | D.would understand |
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