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

Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
When precipitation occurs, some of it evaporates, some runs off the surface it strikes, and some sinking into the ground.

A. When

B. Some

C. The

D. Sinking