It is often remended that children chances to get close to nature.
A. are offered
B. be offered
C. should offer
D. must be offered
网友回答
A. are offered
(答案→)B. be offered
C. should offer
D. must be offered
解析：考查虚拟语气。Remend推荐，建议，后面的宾语从句要用（should）+do的虚拟语气，排除A,D；且主语children和offer之间是动宾关系，所以用被动语态。选B。