91． They made up their mind to work hard．

90． I am very sad because I have no partner to speak English．

89． He worked here since graduation．

88． Tom never gave in any difficulties．

87． He promised me that he will never lie to me again．

下面各句中有错误，请指出并改正。( 注意：只有一处错误 )

86．When to hold a meeting to settle the problem haven’t been decided．

85． One of the d __________ of the job is the long work hours．

84． Of the two the l___________ is far better than the former．

83． Sudden rainstorms are __________(频繁的) on this coast．

82． I’m rather c__________ about my mother’s health．