大多数孩子是文盲。

Most of the children are ___illiterate.

慈善工作者经常在发展中国家教育文盲儿童。

Charity workers often educate ___illiterate children in developing countries.

由于无法上学，一些成年人仍然是文盲。

Without access to schools, some adults remain ___illiterate.