--- Can I help you ? --- I’d like to buy a present for my best friend, _______at proper price but of great use.
I saw some trees the leaves of _____ were black with disease.
Their problem today is somewhat similar to _____ they faced many years ago.
Dorothy was always speaking highly of her role in the play, ____, of course, made the others unhappy.
He made another wonderful discovery, ______ of great importance to science.
He’s got himself into a dangerous situation _____ he is likely to lose control over the plane.