Они все должны быть в present perfect? Если да, то: He has travelled to many places. We have done a lot of interesting things. I have written ten books. They have meet a lot of interesting people. You have been married five times.
My school is very big and new. It is beautiful and comfortable.
There are large windows in the classrooms. The are computers in every classroom. School library has a lot of books and a lot of green plants. Children like to play games in the gym. Schoolchildren also like to have a tasty lunch in the school canteen. Our teachers are very good and clever. In our school all students are trying to study well and they make progress.
All students love my school because they have many friends and learn new and interesting things at school every day.