Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes the following exchanges.

Câu hỏi

Lucy is talking to Huong, her Vietnamese friend, about air pollution in Hanoi.
- Lucy: "Is there anything we can do about the toxic air pollution in Hanoi recently?"
- Huong:" ________, but the only thing we can do is to avoid outdoors and wear masks."

A. I would say yes

B. That’s easy

C. I don't think I know the answer

D. You're telling me

Lucy is talking to Huong, her Vietnamese friend, about air pollution in Hanoi.- Lucy: "Is there anything we can do about the toxic air pollution in Hanoi recently?"- Huong:" ________, but the only thing we can do is to avoid outdoors and wear masks."