This blue sweater is too big for me. Would you please show me a _____ one?

The Japanese Macaca monkey has been studied in the wild for over 50 years. In 1952, on one small Japanese island, scientists dropped some   36   dirt for the monkeys. The monkeys liked their taste, but they found the dirt   37 .

One clever 18-month-old monkey    38  the problem by washing the sweet potatoes in a nearby river, She taught this to her mother. Her   39  also learned this new way and they taught their mothers too.

All the younger monkeys   40  learned to wash the dirty sweet potatoes to make them   40  to eat. But many found it very hard to learn this and still ate the   42  sweet optatoes.

Then something very    43  . In the autumn of 1958, scientists found that the monkeys on other nearby   44  began washing their sweet potatoes too. Scientists still don’t fully understand how this knowledge was   45  from one island to another.

【

The Japanese Macaca monkey has been studied in the wild for over 50 years. In 1952, on one small Japanese island, scientists dropped some   36   dirt for the monkeys. The monkeys liked their taste, but they found the dirt   37 .

One clever 18-month-old monkey    38  the problem by washing the sweet potatoes in a nearby river, She taught this to her mother. Her   39  also learned this new way and they taught their mothers too.

All the younger monkeys   40  learned to wash the dirty sweet potatoes to make them   40  to eat. But many found it very hard to learn this and still ate the   42  sweet optatoes.

Then something very    43  . In the autumn of 1958, scientists found that the monkeys on other nearby   44  began washing their sweet potatoes too. Scientists still don’t fully understand how this knowledge was   45  from one island to another.

【

The Japanese Macaca monkey has been studied in the wild for over 50 years. In 1952, on one small Japanese island, scientists dropped some   26  in the dirt for the monkeys. The monkeys liked their taste, but they found the dirt   27 .

One clever 18-month-old monkey found she could   28  the problem by washing the sweet potatoes in a nearby river. She taught this to her mother. Her   29  also learned this new way and they taught their mothers, too.

All the younger monkeys   30  learned to wash the dirty sweet potatoes to make them   31  to eat. But many old monkeys found it very hard to learn this and still ate the   32  sweet potatoes.

Then something very surprising   33 . In the autumn of 1958, scientists found that the monkeys on other nearby   34  began washing their sweet potatoes too. Scientists still don’t fully understand how this knowledge was   35  from one island to another.

The earth moves round the sun, and the moon moves round the earth. When our part of the earth turns__46__ the sun, it is day. When our part of the earth runs away __47__ the sun, it is __48__.

The sun is much __49__ than the moon. But sometimes the moon _50__ bigger than the sun, because it’s much __51_ to the earth.

The sun is very bright. It gives very __52__light. The moon looks quite bright, too, but it doesn’t give any light at all. The light __53_ the moon comes from the sun.

The moon looks much bigger and brighter than the stars, _54__ in fact the stars are much bigger and brighter than the moon. __55__ smaller than the moon because they are farther away from the earth.