Which of the following things happened first?

Câu hỏi: Which of the following things happened first?

A Dr. Besser found out what made the children sick.

B Dr. Besser made a list of what the healthy children ate.

C Dr. Besser went to where the apple juice was made.

D Dr. Besser made a list of what the sick children ate.

Câu hỏi trên thuộc đề trắc nghiệm

Reading 5B: The Disease Detective