Between the two generations, it is often not their age, _________their education that causes misunderstanding.
It was ________ he came back from Africa that year ________ he met the girl he would like to marry.
Barry must have visited the Eiffel Tower before,________he?
________,he talks a lot about his favorite singers after class.
________ and we’ll get everything ready for the taking off.
Not until we have had a chance to discuss it thoroughly ________ perfectly.