1.be good at 和be good in的区别 2. the old parents ___a great deal of their savings on their son's
问题描述：
1.be good at 和be good in的区别 2. the old parents ___a great deal of their savings on their son's
new house costspenttakepaid
答
1.be good at sth./ doing sth.擅长…… be good in 并不是固定搭配
2.spent...on...okok那 we are doing much better___Egnlish 啊？？？in 还是at啊这句是do well in 的搭配，better是well的比较级那有do well at的吗？没有