《2025年暑假生活电子工业出版社中职高一英语》

13. The speed must be ______.
A. under or equal to 30
B. above 30
C. equal to 30A
14. mean that ______.
A. you should slow down with bicycle
B. you should speed up with bicycle
C. you should go as usualA
15. The area is ______.
A. under control
B. under surveillance camera
C. under constructionC

答案： 13. A
14. A
15. C