Cars do cause us some health problems — in fact far more serious _______ than mobile phones do. A.one B.ones C.it D.those
Just before I left London, _____ I sent him a telegram.
If I’m mistaken, _____ you are mistaken too.
If wishes were horses, _____ beggars would ride.
. When the last prize had been awarded _____ everybody cleared off.
Although he had only entered the contest for fun, _____ he won first prize.