Compound. The simple sentence would be 'they were very busy'
Hope I'm not late!
Your Answer is:
"Cork hats and newspapers of more than eight pages were invented for the rain"
Hope this helps!
Have a Brainly Day!!!
Its A because cells are the basic unit of life
Its all wrong, the world is wrong, our society is whats causing this, #TrumpTrain2k16 #MakeAmericaGreatAgain