Rewrite the sentences in such a way that they mean almost the same as those printed before them

rewrite the sentences in such a way that they mean almost the same as those printed before them.
1. The man was so tired thật he couldn't finish this work.
--> The man was to...............
2. No girl in my class is as tall as Mai.
--> Mai is................................
3. Minh began to collect stamps in 2010.
--> Minh has...........................
4. It was raining hard but we went to Mary's birthday party in time.
--> Although............................