Измените время сказуемого на past progressive. 1)she is reading a book now.2) they are playning football now. 3)the teacher is explaing a new rule now.4)l am coughing and snezing niw

Это легко:

is меняем на was, are - на were, вместо now пишем  then или  at that time

1) She was reading a book then.

2) They were playing football at that time.

3) The teacher was explaining a new rule then.

4) l was coughing and sneezing at that time.