We have planted thousands of trees in recent years. This year _____ we’ve planted ten thousand trees.

 Simon has lived in Spain for more than 10 years, but _______ enough, he can’t speak a word of Spanish.

I got to know him five years ago. We have been in close touch with each other ______.

It is good for elderly people to be _________ involved in community service.

--- It is what parents say and do that really matters in children’s character training. --- ___________.