an alloy is a substance that has metallic properties and contains at least two elements
a news reporter should be sure his source of information is reliable before making his report
some witnesses said the airplane wobbled before it crashed
the crash was probably due to mechanical problems.
The general left after inspecting the troops
Did he listen to the radio while doing his homework
There were many injuries form that train crash. the doctors and nurses had their hands full
Airplane wings are connected to the body and keep it flying
Large passenger planes need a long runway to take off
He can’t have an apartment on the 20th floor; he has a fear of heights.