89. He worked here since graduation.

88. Tom never gave in any difficulties.

87. He promosied 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 mothr’s health.

81.We are looking for someone who is_____(可靠的) and hard-working.

80. He is so s__________ that no one can persuade him.