根据下列句子及所给汉语注释，写出空缺处各单词的正确形式，每空只写一词。

1.This kind of medicine is more useful than is 　　 (期待).

2.It’s my great dream to sail across the 　   (太平洋) .

3.I have had her letter for two weeks. But I haven’t 　　(答复) to her.

4.Many Chinese students have come to realize the 　　 (重要) of learning English.

5.It was reported that two 　　(猴子) escaped from the zoo.

口语应用

A: 　73
B: Yes, please, I want to buy a pair of sports shoes.
A: 　74
B: Size ten or eleven.
A: OK! What about this pair?
B: Sorry! I don’t like black. Have you got any other colors?
A: Other colors? 　75
B: Can I have a look at the brown ones?
A: Yes, please.
B: 　76
A: Forty-six yuan
B:　77
A: How about forty?
B: No, it’s still expensive. What about thirty?
A: Thirty? Er…all right. Please take it。