, исправьте ошибки в предложениях

a.- I were listening my brother playing the piano. - was

b.- She was speak English at school. - speaking

c.- They was answering the questions. - were

d.- My grandma were dancing with her friends. - was

e.- My sisters was studying for the exam. - were

f.- I was think about the problem. - thinking

g.- My brother were repeating the words. - was

h.- It was rain a lot. - raining

i.- They were walk in the park. - walking

j.- John were swimming in the pool. - was