Viết lại câu: Nam finds it hard to drive on the left. There was too little time to go back home for my umbrella

Viết lại câu:
1. Nam finds it hard to drive on the left.
->Nam is not .....
2. there was too little time to go back home for my umbrella.
->there was not....
3. it was necessary to book concert tickets well in advance.
->Concert tickets ....
4.the football players' training is still going on.
->the football players ....