People send out sky lanterns to ask for help when in trouble, but now sky lanterns ____ celebrating the festivals.
There is a pen ______some pencils on the desk.
This is ________ pen. That’s ________ eraser.
The weather is _______today than yesterday.
We try our best ___ English and we practice ____ English every day.
Although she always stays at home, she knows what’s ______ in the city.