-- _____is that used for?---_____ the floor.
_ __ with the size of the whole earth, the biggest ocean does not seem big at all.
My parents don’t mind what job I do __ .I am happy.
--- I’m sorry I broke the vase.--- Oh, _____. It wasn’t very expensive.
It rained heavily in the south,________ serious flooding in several provinces.
Bring the plants into a warm room _____ they will soon open.