—I’ll join the music club ________ Mary is in the club, too.—You mean if Mary joins the club you’ll do, too.
They are good friends. _______ is no wonder that they know each other so well.
Does ________ matter if he can’t finish the job on time?
— I don’t know whether I should go abroadornot, Mum. — I leave _______ to your own judgment whether you should do it.
_______ is well known _______ Hong Kong returned to China on July 1st, 1997.
. It used to be thought _____ the Earth was flat.