44．A． how                   B．where             C．when              D．what

43．A． What            B．Why               C．How                D．Where

42．A． useless             B．exciting             C．useful              D．surprising

41．A． to                B．in                  C．of                 D．for

40．A． dangerous         B．safe             C．danger              D．badly

39．A． Because             B．So                C．Since                D．Such

38．A． look at            B．look over                   C．look up             D．look after

37．A． as                 B．seen               C．unlike               D．like

36．A．speak                 B．say                   C．speaks              D．says