Look! What a clean room! Who _______it ?

I don’t remember how many years ago ______________I paid my last visit to the principle of my primary school.

He plays basketball so well! Who taught _______?—He learnt it by _______.

She will go to Marcia’s house _________ Friday night. [ ]

Why was he late for school yesterday?— He overslept. By the time he got to the bus stop, the bus ________ already ______.