Neil Armstrong (1) _______ into his microphone. And in less than two seconds the message that will live in the annals of exploration flew with the (2) _______ of radio to the huge telescope dish at Honeysuckle Creek, near Canberra, Australia, thence to the Comsat (3) _______ over the Pacific, then to the switching center at the Goddard Space Flight Center outside WashinGiải thíchon, D.C., and finally to Houston and the (4) _______ of the world: “That's one small step for a man, one giant leap for mankind.”

Read the reading below carefully, and then complete it with the best option A, B, C or D given below
(1) ....................

These schools were called junior colleges (3) _______ their main function was to offer only the beginning (4) _______ of general college study.

Parallel (4) _______ it are two shorter ridges: the Alpha Ridge on the North American (5) _______

Conservation, sustainable use and protection of (1) _______ resources including plants, animals, mineral deposits, soils, clean (2) _______, clean air, and fossil fuels such as coal, petroleum, and natural gas.

Other varieties of the game popular in (5) _______ parts of the world have Australian football and Gaelic football.

It is (3)_______ that the word ‘chess’ comes from ‘shah’, the Persian word for ‘king’ and that ‘checkmate’, the game’s winning (4)_______, comes from the phrase ‘shah mat’, (5)______ ‘the king is dead’

At times, it is difficult to tell what sort of greeting (4) ___________ is followed.

Ever since it was first possible to make a real robot, people have been hoping for the invention of a machine that would do all the necessary jobs around the house. If boring and repetitive factory work could be (1) ________ by robots, why not boring and repetitive household chores too? A factor robot (2) ________ one task endlessly until it is reprogrammed to do something else. It doesn’t run the whole factory. A housework robot on the other hand, has to do several different (3) ________ of cleaning and carrying jobs and also has to cope (4) ________ all the different shapes and positions of rooms, furniture, ornaments, cats and dogs. (5) ________, there have been some developments recently.

A factor robot (2) ________ one task endlessly until it is reprogrammed to do something else. It doesn’t run the whole factory.

The director imagines how the film should look and guides the actors and the (4) _______ as they make the movie.

If you (3) _______ you can have a musical experience by imagining the sound of a piece of music, then you think (4) _______ can exist without sound.