2个简单英语改错题1 Until recently i learend advanced maths all by myself\2 In winter some wam-blooded animals can keep up their common temperature

2个简单英语改错题
1 Until recently i learend advanced maths all by myself\
2 In winter some wam-blooded animals can keep up their common temperature

1.I learned之间加didn't
not until 词组
2.逻辑错误,把some删掉,温血动物都能保持体温.