A quarrel _________ between the couple, which made their son break away from his family.
| A．broke into | B．broke in |
| C．broke down | D．broke out |
The pupils hurried to the classroom______ the bell rang.
| A．until | B．as soon as | C．if | D．so that |
Yesterday I was just to go out _____ someone telephoned me.
| A．when | B．while | C．as | D．that |
A boy with two dogs_____ when the earthquake rocked the city.
| A．were sleeping | B．is asleep | C．was sleeping | D．are asleep |
Before I started high school, I used to spend a lot of time _____ games with my friends.
| A．play | B．plays | C．playing | D．played |
Liu Chang said that joining the English club at school was the best way ______ her English.
| A．to improve | B．improve | C．improves | D．improving |