Mark the letter A, B, C, or D on your answer sh...

Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions.

An autistic child usuall appearance to go through his early development normally, but a break in development usually occurs by the age of three.

A. appearance

B. normally

C. development

D. by the age