Translate the following sentences into English and write your sentences on the ANSWER SHEET.
老师很高兴，因为学生们认真讨论了他提出的问题。
【正确答案】：
THE TEACHER WAS VERY PLEASED BECAUSE HIS STUDENTS SERIOUSLY DISCUSSED THE QUESTION HE PUT FORWARD.
【题目解析】：
The teacher was very pleased because his students seriously discussed the question he put forward.