Question

please answer fast.​

Answer 1

if u don't pay attention to the announcement you might board the wrong train.

when the teacher raised his eyebrows, all the students said that they had revised.

we have conquered air,tym and space with the help of the scientific inventions.

there can be many causes of high BP

Answer 2

1. You might board the wrong train if you don't pay attention to the announcement.
2. When the students said that they had revised all their lessons the teacher raised his eyebrows.
3. ............
4. There can be many causes of high blood pressure.