She speaks English an American, so we all believe that she has stayed in America for many years.
Mrs. Wang always asks us to ________ conversations in the English classes.
Would you please drive more ________, David? The train is leaving soon.
After a serious illness, he finally _______ how important his health is.
It is our ________ to look after our parents when they get old.
Our teacher is very kind to us. So we regard her ________our best friend.