What does this sign mean?

A. Visitors should turn off their cell phones when they are in the galleries.

B. Visitors are allowed in the galleries with a cell phone.

C. Visitors should turn off cell phones after visiting the galleries.

D. Visitors should use their cell phones in the galleries.

Đáp án
A. Visitors should turn off their cell phones when they are in the galleries.

Câu hỏi thuộc Bài tập:

Friends Plus 8 - Test for Unit 1 - Test 1