-- Sir, could you please wait for another 20 minutes and we’ll serve you very soon.-- Another 20 minutes? It was only 6 o’clock ________ I got here, but it’s 7∶10 now.

—My daughter lived in France for five years and now she's working in a foreign company.—______is no wonder that she speaks such excellent French.

______ is no need for primary students to work at their desks all the long.

I was leaving the office when it suddenly 　　　 to me that I had forgotten my keys.

—“Did you have any difficulty in yesterday’s homework?”—  “No, in fact I found _____.”