Найди и исправь ошибки.

a) It is cold last winter.

b) Is you a student?

c) Mr. Black is not old, is it?

d) My brother can to ride his bike very well

В варианте с должно быть is he,так как первая часть tag question отрицательная.Вторая часть должна быть положительной.

a it was cold last winter

b are you a student?

c mr.black isn't old, isn't he?

d my brother can ride his bike very well.

a) It was cold last winter.

2) Are you a student?

3) Mr. Black is not old, is he?

d) My brother can ride his bike very well.