When I walked ____ the playground, I saw a lot of boys _____ there.
Spring is coming.I feel like __________weight (减肥).
The scientists in China are trying __________ the ways to reduce the fog and haze (减少雾霾).
I want to cook ________ for my parents.
----________ is he staying? ----For a month.
I would like to know something about Lao She. The more information, the ___.