at times与sometimes的用法有何不同

at times 可以表达“时不时地”；sometimes 主要表达“有时”。两者都可作状语，但at times 作表示时间、地点的状语是不能直接放在谓语动词前面或谓语动词与宾语之间的。 例句： Children_____ do too much in gardens,in shops or even in their own homes. (A some time B sometimes C some times D at times答案：sometimes