Children are not recommended to see such films bad for their mental development.

It’s hard work to achieve a balance between schoolwork and hobbies.–So it is, but we have to.

Eddie is _____of eating meat, so he is fat.

You’re dropped __________ “s” in the word “across”.－Oh, you are right, __________ letter “s” should be doubled like this “cross”.

Parents and teachers should help teenagers control their use of computer games ______be controlled by themselves.