Only in 1996 the determination and patience of the scientists with a breakthrough at last .
---When choosing furniture, you focus on function while I think more about the design. ---That’s_____we differ.
---Thank you for inviting us.Tell your wife that she gave us a perfect party. ---I______. See you later.
He did what he could______her out of trouble.
Henry goes to a free class every Sunday afternoon which______at 4 pm.
---Who’s the man talking to our teacher? ---A professor_____a visit to our school.