6． Most animals and plants are _______(敏感) to large or sudden changes in temperature, so the ocean is a safe and comfortable habitat.

5． Tickets for the exhibition are a ________ in the school hall.

4． She　 h______ a long time at the gate, wondering if she should knock at the door.

3． The film Harry Porter is a big success and it’s adapted from science f______.

2． Our country has made many new ________(突破).

　　 根据下列句子及所给汉语注释或首字母，在句子右边的横线上，写出空缺处各单词的正确形式。(每空只写一词)

1.　 Noting is fully ______(完美) for us all.