Is your mother a worker? No. she __________.A used to B was used to C used to be D used
—Hi, _________ are you going? —To the zoo. I want to see some animals.
Please listen to the teacher carefully, don’t _________ of the window.
In most homes, people cook meals in the _________.
We live_________ the second floor _________a flat.
—Would you like to come to my birthday’s party? —Yes, _________.