--youDianchiLakethesedays?--Yes，Ihave．Thewaterisgettingcleanerandthemountainsaremorebeautiful．A．Have；gonetoB．Have；beentoC．Did；goto
--_______ you_______ Dianchi Lake these days?
--Yes，I have．The water is getting cleaner and the mountains are more beautiful．
A．Have；gone to B．Have；been to
C．Did；go to D．Have；been in
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