Children experts suggest children more time to play freely.
A. are given
B. will be given
C. be given
D. must be given
网友回答
A. are given
B. will be given
(答案→)C. be given
D. must be given
解析：考查非谓语动词.句意:儿童专家建议应该给孩子们更多的时间来自由的玩. suggest +(that )+主语+(should) do+sth 其中的should 可以省略,建议某人应该做某事.结合语境可知从句主语children是动作对象,故用被动语态,选C.