Engines used in space shuttles are much larger and more strong than the ones used in jet planes.

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• California has more land under irrigation than any another state

• _______ we had got to the plane, it started to rain.

   

• I'm worried about it, and he is_______

   

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• Most sand dunes are always in motion as wind pushes sand upward one side of each dune, over the top, and down the other side

• Tucked away in the mountains of Bolivia and Peru, Lake Titicaca are the highest navigable lake in the world.

• _______their small size, the cameras take good pictures.

   

• An effective paragraph must _______ be unified and ordered but also complete.

• He has hardly never given a more impressive performance than this.

• Society will be having to change radically to keep pace with the technology available.

• I had a few problems, but Rob gave me some good advices

• Most modern barns are both insulated, ventilated and equipped with electricity

• Marta being chosen as the most outstanding student of her campus made her parents very happy.

• After analyzing the steep rise in profits according to your report, it was convinced that your analyses were correct

• I work in a large office with about thirty other people, most of whom I know quite well enough

• Of all outdoor activities, Paul likes fishing best of all, but he doesn’t enjoy cleaning the fishing rods afterwards.

• He had to act immediately; ________ he would have been too late.

   

• The top of the mountain covered with snow during winter

• In some species of fish, such the three-spined stickleback, the male, not the female, performs the task of caring for the young.

• He had to take photos of the places he visits. _______ he's writing a report of his journey.

   

• Many roads and railroads were built in the 1880s because of the industrial cities needed a network to link them with sources of supply.