Is this the reason _______ he was late for the meeting?
Was it on a lonely island he was saved one month after the boat went down.
John's success has nothing to do with good luck. It is years of hard work _______has made him a great scientist today.
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.