Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
We regret to tell you that the materials you have ordered are ________
A. out of work
B. out of stock
C. out of order.
D. out of reach
Chọn B
Nên phân biệt với “priceless”: vô giá, rất giá trị