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It’s extremely dangerous for the drivers to _______ speed as the traffic lights are changing.
A.pull up B.put up C.rise up D.pick up
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It's extremely dangerous for the drivers to ________ speed as the traffic lights are changing.
A.pull up
B.put up
C.rise up
D.pick up
In the forest or in the fields you can often see small hills of earth and busy little ants. Ants live in different 1 . An ant has two strong jaws to 2 soil, to cut up food, to 3 the eggs or the young.
The head of an ant is triangular (三角形), with two 4 eyes and sometimes three more very small 5 , which are made up of many parts, 6 the ant can see 7 that moves around it. Some of these eyes see things near it; others can see things 8 in the distance.
The ant has six legs. Its feelers have twelve joins (接合点), 9 which the ant finds its 10 in its underground home. Some ants do not 11 nests, but make use of hollows under stones or logs. Other ants build their little hills with 12 , bits of wood, sand and earth.
The life of ants is not only 13 and play. They must have rest too. But they don't 14 long. When waking up, they begin to 15 themselves. They use their tongues just 16 a cat uses hers.
Ants have a good 17 . When an ant, which has been away for a long time, returns to its nest, the others 18 it and show their greatest joy at its return. But if a strange ant 19 their nest, the ants will 20 the stranger killed at once.
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