In winter, we must pay attention to _________.
— Do you learn to cook at home?— Yes. ________ to cook is great fun.
---Hey, guys. Do you often have a good time ________ after-school activities?---Of course, we do. And we always have a lot of time ________ soccer.
--- Did you __________ much time watching Li Na’s match last night?--- Yes. It __________ me a few hours to watch this match.
Bob swims _______ than I, but he doesn’t swim my brother.
I find this Math problem very ___ _. I believe the students can work it out .