7、.A.Worried;availableB.Worrying;wasavailableC.Worried;wasavailableD.Worrying;available16._____inthought,he_____himselfbesidethelake.A.Lost;satB.Losing;satC.Tolose;seatedD.Lost;seated17.Theplace is socharmingthatitis_____asecondtime.A.worthbeingvisitedB.worthy of being visi