In my opinion, we can improve our oral English ____we practice talking with others more often.

_________ isunknown to us all.

Why are your eyes so red? You _______ have slept well last night.

The thought of going back home was _____kept him happy while he was working abroad

Measures have to be taken to teach young people how to ______ themselves both in family and in school. They don’t know the basic manners.[ ]