75. Your dress is s________ to mine both in style and in color.

74. Bad luck. I missed the early bus because I o________ this morning.

73. People enjoy Chinese food because it has different t_______ and is usually very delicious.

72. The river has r________ by several meters because of the rain.

　　　 　根据下列句子及所给单词的首字母或中文，写出各单词的完全形式(每空限填一词)

71. The teacher had already d________ our class into four groups when I arrived.

　 用方框中所给单词的适当形式填空，使短文通顺、正确、连贯(每个单词限用一次)。

long　 off　 hear　 real　 care　 much　 time　 send　 swim　 top

Jack and an Australian shark expert(专家)were talking by the sea near Sydney. They stopped on a wide sandy beach. There were __61__ people there. Behind them was a small tower. There was a man at the __62___.

“That’s the lookout tower,” the Australian said. “There’s a man up there all the __63__. He never takes his eyes __64__the sea. When he sees a shark, he will __65__a warning(警告). People will leave water when they __66__ the warning.”

　The beach was full of people. A few__67 __ were a long way from the beach.

“Those people right out there have to be__68__,” the Australian said. “Sharks seldom hurt crowds.”

“Can the man in the tower really see sharks from far away?”

“Oh, yes, he can. It’s not __69__ surprising. Some sharks are very big. They’re at least three meters__70__. And the water is clear on these beaches. Of course, it is very dangerous to swim when it is dark, or when the water is not clear.”