1、He has been to London, and he ______ there again last year. A.has been B.has gone C.went D.had been
A.will wait B.have waited C.are waiting D.will be waiting
A.practices B.will practice C.had practiced D.is practicing
A.seated B.was seating C.was seated D.had seated
A.has known B.knows C.has been working D.is knowing
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