432. Eventhough he behaves impolitely, everybody still loves him.

=> Despite he behaves impolitely, everybody still loves him.

433. Though she participated well in the project, she didn't won the award.

=> In spite she participated well in the project, she didn't won the award.

435. Although the food was prepared carefully, we didn't want to eat.

=> In spite of the food was prepared carefully, we didn't want to eat.

446. It's a long time since our last convervation.

=> We haven't convervation since a long time

450. We had to do a lot of homework at school.

=> We were had did a lot of homework at school.

451. I was never allowed to walk barefoot when I was a child.

=> My parents asked me I was never allowed to walk barefoot when I was a child.

437. People say that he was born in England.

=> It is he was born in London the people said 

429. We couldn't across the street because of the fog.

=> The fog prevented us across the street