这题必须选A
把what he could 看成sth
do sth to help sb with sth
为什么what he could help his students with their English.不能做宾语?
答：因为what一般不用来引导宾语从句,如引导从句需做主语,而你后面的从句：除了主语,没有谓语,就不叫句子了
上面答的都很好,就是没抓住关键点