—It’s a long time ________ I saw you last.—Yes,and what a pity it is now that it will be a long time ________ we see each other again.
As a child, Jack studied in a village school,________ is named after his grandfather.
In China, the number of cities is increasing______ development is recognized across the world.
In our class there are 46 students, ________ half wear glasses.
I wish to thank Professor Smith, without______ help I would never have got this far.
She brought with her three friends, none of_________ I had ever met before.