The house could fall down soon if no one __________ some quick repairs work.
Mark ______ have hurried. After driving at top speed, he arrived half an hour early.
People have always been ______ about exactly how life on earth began.
As a child , Jack studied in a village school , _____ is named after his grandfather.
--- I cannot find Mr. Smith. Where did you meet him this morning? --- It was in the hotel ____ he stayed.
The workers ______ the glasses and marked on each box“ This Side Up”