50．Don't be afraid to be ________ at when you practise speaking English．(laugh)

49．Sorry，your ________ is still under discussion．(suggest)

48．Leo is active in sports．He is the ________ of all in his class．(strong)

47．The ________ information can't give students any help to find a job．(use)

46．How many new ________ are there on the table?(dish)

45．He is not used to ________ the tough problems to us like this．(解释)

44．The rainbow over the sea is a beautiful ________．(风景)

43．It is good for your health to ________ deeply．(呼吸)

42．She gave her son a ________ not to chat online too much．(警告)

根据句子意思，用括号中所给汉语提示或英语单词的适当形式填空。(每空一词)

41．Amy's pen is the same color ________．(我们的)