—It’s time to go to bed,Li Ming.—Mum,I have a lot of homework to do and I won’t go to bed________I finish it.
---Do you often ________ English books? ---Of course.
My legs were ________ tired ________ I wanted to stop.
---There is ________ milk in the fridge. Please buy some on your way home. ---All right.
I guess Lucy can enjoy ________ at the dancing party.
Did Linda buy anything ________ her mother ________ her birthday?