1.他学习很不认真，所以每次考试都以失败告终。 He studies carelessly,so he (fail)to pass the exam. 2.尽管困难重重。 (Although)all the difficulties. 3.十九世纪 19Century 4.他步行到学校用了半个小时。 He(will take)half an hour(to reach) school.
1.He studies carelessly,so he (fails)to pass the exam. 要用单三阿2.(Despite)all the difficulties. although后面跟一个完整的句子3.He(will take)half an hour(to reach) school.
