four winner   as long as ring honest

46．Bill is an　　boy．Everyone in our class trusts him

47．You are sure to speak English beautifully　　you practise every day

48．Thanksgiving is celebrated on the　　Thursday in November in America

49．When the　　of the World Cup returned home，they were warmly welcomed

50．The children rushed out of the classroom as soon as the bell　　for the end of class．