Question

the mother heard the sad news . she Burst into tears . ( use participle )
He learns grammar . He attends the online classes .( use gerund )​

Answer 1

Answer:

When the mother heard the sad news, she burst into tears.

Attending the online classes, he learns grammar.

Answer 2

I) Hearing the sad news mother burst into tears.

2) He attends online clases for learning grammer.