43．A．When                 B．Where                C．Either                D．Whether

42．A．prepares            B．appears               C．plans                  D．starts

41．A．think                  B．remember         C．know                 D．discuss

40．A．invited             B．forced                C．allowed              D．encouraged

39．A．opposite            B．unknown            C．same                  D．new

38．A．give                   B．find                   C．send                   D．work

37．A．schools            B．homes                C．shops                 D．hospitals

35．A．1eft                   B．returned           C．answered            D．arrived