Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
The picture is _________; the thief will be most disappointed when he tries to sell it
A. invalid
B. priceless
C. worthless
D. unprofitable
Chọn C
Nên phân biệt với “priceless”: vô giá, rất giá trị