All children between the age of 5 and 16 in his country must (go to)school.
Sometimes we feel (孤独的) even though there are lots of people around.
This article tells us how to (避免) getting hurt while climbing.
He often (旅行)to beautiful places in the world.
The boy is (勇敢的)enough to save the little girl from the river.
The (第三)step of making fruit salad is to add some honey.