To determine exactly how something happened.

attempt to find.

containing as part of whole being considered. To make someone, something part of a group.

of very distant past. old man.

small, narrow river. Classes split into ability levels. To split classes or students into ability levels.

type of aircraft which derives both lift and propulsion from one or more sets of horizontally revolving overhead rotors. To transport by helicopter.

used for emphasis with following adjective functioning as adverb. thing that is unspecified or unknown.

View of a (beautiful) country area or scene. To make gardens that improve an area of land.

firmly established in particular habit, belief. To formally approve or check something.

1000 million. thousand million.

Being what was wanted or needed. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. To accept or receive something happily and gladly.

relating to or found on surface of something. Nature or emotions that show, but may not be true. rise or come up to surface of water or ground.

remark expressing opinion. Some things you say, giving opinions; remarks. To say something that gives your opinion.

what person deserves with regard to reward or more usually punishment. Bare areas of land often with few plants and water. To leave a place for ever; abandon.

small wave or series of waves on surface of water. Small gentle low wave on the surface of water, etc.. To travel or move as small gentle waves.