March 22 is World Water day. Which of the following signs shows that we should save water?
Reading is as _____ as writing when you learn a foreign language.
The article is easy because there are _____ new words in it.
_____ mother is a policewoman.
---Help _____ to some beef, Ciping. ---Thanks. It’s very delicious.
---Is this _____ mobile phone? --- No, it is _____. John’s phone is beside his cup.