根据句意及首字母或汉语提示完成单词。

1. There are so many things here that I can't  decide which one to c _____.

2. My English teacher often e _____ us to  study English hard.

3. Study hard, and you will make _____ (进步).

4. This is Ann's _____ (私人的) letter, please  give it to her.

5. Today is a _____ (特殊的) day in the history of our country.

患者，贫血，红细胞大小不一，中央淡染；转铁蛋白饱和度为13.5%，全血游离原卟啉为52μg/dl。最有可能的诊断是

A．缺铁性贫血

B．再生障碍性贫血

C．铁粒幼细胞贫血

D．巨幼细胞性贫血

E．遗传性球形红细胞增多症