After working for two years, Tim Martin was ______ as the top manager in charge of the company.
It was 80 years before Christopher Columbus crossed the Atlantic______ Zheng sailed to East Africa
It was not until near the end of the letter ______ she mentioned her own plan.
It was only after he had read the papers Mr. Gross realized the task before him was extremely difficult to complete.
An awful accident, however, _____occur the other day.
It was probably at that moment _____ I understood what kindness really was.