—I’m sorry to trouble you, madam. —_______
. Many new means of transportation have been developed in our century, ________ perhaps the hovercraft.
. In , the take-home food sold by supermarkets made up per cent of the total, while _____supplied by fast restaurants was per cent.
. He made another wonderful discovery, ________ of great importance to science.
. His article deals with the life of a rare animal ________.
. I’ve never been to the Three Gorges but it’s the place ________.