问题描述：
请帮我看看这5句话对不对?
1,He doesn't study,having mentioned before.
2,Bob's father works on the project,having spent for years in Egypt.
3,He came to my birthday party,I not having expect at all.
4,She asked for this help,he having gave it gladly.
5,Lingming went to Shanghai in 1998,learning to sing in that period.
第二句是 four years
1,He doesn't study,having mentioned before.
2,Bob's father works on the project,having spent for years in Egypt.
3,He came to my birthday party,I not having expect at all.
4,She asked for this help,he having gave it gladly.
5,Lingming went to Shanghai in 1998,learning to sing in that period.
第二句是 four years
问题解答：
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