1．He held his mother’s hand __tightly__ (紧紧地)when crossing the street.
2．The ice on the lake is not __firm__ (坚固的)enough to walk on.
3．I can’t swallow anything because my __throat__ (喉咙)is painful.
4．Water itself is __vital__ (至关重要的)to the future of the race.
5．His head has been hung over with thick __bandage__ (绷带)except two eyes.
