I am not a native speaker of English, so please take this correction with a grain of salt.

Assignment number 19

A.
I often wake up when it's noisy outside.
Are her glasses more modern than yours?
The trees was blown down that hurricane. --> The tree was blown down by that hurricane. OR The trees were blown down by that hurricane.
I drowned five times in the nightmare.
I don't sleep under a blanket in that oppressive heat.
Have you ever seen a dirtier trousers? --> Have you ever seen dirtier trousers? OR Have you ever seen a dirtier pair of trousers?

B.
We have waited for forty days.
Where have you bought this scissors? --> Where did you buy these scissors?
Her son has drowned last week.
They need eight pairs of socks.
The wind blew very hard.