根据语境、汉语或首字母提示，填写单词，每空一词（请将单词完整地填写在答题卡上）。

81. The manager thought he was a             (可靠) person and told him all about the new plan.

82. We went to her           (营救) the moment we saw her fall into the river.

83. It was a mercy that the whole family           (幸存) the earthquake.

84. If you study regularly every day, your vocabulary will           (逐渐) increase.

85. All countries, big or small, should be           (平等) treated.

86. I beg you will pardon me for coming in without           (邀请).

87. About 80,000 c           ran in the Marathon held in Xiamen on Jan.5^th, 2013.

88. The aims of China's space activities are to e           outer space, and learn more about the universe and the Earth.

89. We couldn’t have succeeded without your help. We greatly a           all your help.

90. The Diaoyu Islands,            to China, cover an area of about 6 square kilometers.