Read the passage, and choose the correct answer A,...

Câu hỏi: Read the passage, and choose the correct answer A, B, C or D for each question.From paragraph 3, we can infer that when Mr. Sam was very young, he mostly helped his parents by .............

A. applying the woodblocks with proper paints and pressing them on sheets of paper

B. applying seashell powder to make various paints for painting making

C. drawing with a pen and using proper paints to make many copies of paintings

D. collecting and taking the paintings to the market for sale