【3个初二英语时态填空】很简单的!急~一时忘了句型啊!
TheZhalongNatureReservewas____(put)onthelistoftheworld'simportantwetlands.
Ihave___(see)thisfilmbefore.
Johnhas____(finish)hishomeworkbefore____(go)tobed.
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很严重地.忘记了是havedo还是todo.