The boy is lying on the ground, _________ at the aeroplane in the sky.
—Nothing wrong with it, ______?—No. Yours is a specially-built model. Drive carefully, though.
The film The Founding of a Republic is wonderful because about 80 stars appear in it, some of ________ are world-famous.
—Tom graduated from college at a very young age.—Oh, he ______ have been a very smart boy then.
It was reported that 115 miners _____ in the flooded mine for eight days were pulled out alive at last.
Police were sent out to keep the traffic ________ smoothly during the snowstorm.