学问学问,既学又问,方成学问.
真心希望能Give you a hand（帮助你）.
都对哦.When in trouble是介词短语做状语,When being in trouble 是分词短语做伴随状语；不过前者更为人们常用.
黄老师为你释疑解答,3Q!那么 shestudies very hard though she is still rather weak.
变为shestudies very hard， being still rather weak，也是对的喽？习惯上做伴随的分词短语都放在句子前头：Being still rather weak，shestudies very hard.