A) 选用方框内所给词的适当形式填空。每个词只能用一次。

　　country her eleven love introduction

　　76. Pandas are so ________ that they are popular with many people.

　　77. Mr. Wang’s home is on the ________ floor of this building.

　　78. China is one of the biggest ________ in the world.

　　79. Welcome to our city! Let me ________ some places of interest to you.

　　80. —Is this new watch Ann’s?

　　—Yes, it’s ________.

　　B) 根据句意及所给的词首字母或汉语提示，补全单词。

　　(注意: 须把完整的单词写在答题卡的相应位置)

　　81. As we know, the m________ goes round the earth.

　　82. Bill u________ gets home at 6:00, but today he didn’t get home until 7:00.

　　83. After working for several hours, he was t______

　　__ and fell asleep soon.

　　84. The students are having a ________(化学) class in the lab.

　　85. We shouldn’t waste water. Instead, we should ________(节约) it.[