Заполните пропуски глаголами в нужном медли-Past Continuous or Past Perfect or

Заполните пропуски глаголами в подходящем медли-Past Continuous or Past Perfect or Past Perfect Continuous. 1. They stood under the shelter because it (to rain). 2. His hands were covered in oil because he (to try) to fix the car all morning. Unfortunately, he ( to manage) to make it start. 3. When Mrs. Morgan came into the classroom, the pupils (to run) around and (to scream) at the tops of their voices. Someone (to draw) funny pictures on the blackboard.