III:
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
Trả lời câu hỏi dưới đây:
The restaurants on the island are expensive, so it’s worth______ packed lunch.
Đáp án là B. Cấu trúc: it’s worth + V-ing: Thật đáng khi làm cái gì..