How come you stepped into the lab with your shoes on? You’re to take them off before you e

问题补充：

How come you stepped into the lab with your shoes on? You’re to take them off before you enter it. I told you so.

A. suggested

B. supposed

C. forbidden

D. permitted

答案：

A. suggested

(答案→)B. supposed

C. forbidden

D. permitted

解析：考查动词搭配：句意：你怎么穿着鞋子就走进实验室了？你进来前应该把它们脱了，我告诉过你的。B.supposed猜想，be supposed to do应该做…，A.suggested建议，不能接sb to do， C.forbidden禁止， D.permitted允许，不符合句意，选B。