1. Many flowers close their
petals when it is raining.
2. Many flowers close their
petals when raining.
3. Many flowers close their
petals while raining
4. Many flowers close their
petal while it is raining
5. Many flowers close thier
petals as raining.
6.Many flowers close their
petals as it is raining.
Would you like to explain
which of them are correct
and idiomatic would you
give the reason why they are
so as long as possible?
And instead of close, would
we use shut?