Buatlah 2 contoh kalimat past continu tenses yang menggunakan keterangen waktu: (a) while, (b) as, (c) when

a) 1. While I was reading, Dina came to my house last night.
2. She was reading a book while the library was closed.

b) 1. Linda was helping someone as I met her on the street yesterday.
2. I was going to the canteen as Dony wrote that note in the class.

c) 1. That building was being built last year when I passed last year, but now it’s already broken down.
2. I was sleeping when the car crashed my home last night.

Sorry klo slh ya...