Vul in: PAST CONTINUOUS + PAST SIMPLE
1. I ______________ (wait) for the bus (lang) when it __________ (start) to rain (kort).2. They _______ (play) basketball, when I ______ (see) them.
3. When the phone _______ (ring), she _________ (write) a letter.
4. I __________ (study), when my dad _________ (knock over) his tea cup.
5. My mom _________ (enter) my grandma's house, while my little brother __________ (play) in the yard.