1, the clouds in the sky are unpredictable, like a group of horses, like a few puppies, like a plane and like a flower.

The clouds in the sky are really changeable. They become a fragrant excrement, a long snake, a long worm and a circle.

On the football field, players will pass the ball and shoot, the referee will blow the whistle and ask for a replacement.

During the summer vacation, children do homework, play games, watch TV and surf the Internet for a while. The activities are really rich.

The game has already started. Long-distance runners jog leisurely for a while, accelerate like a motorcycle for a while, look at the distance between their opponents and themselves for a while, and sprint to the finish line for a while.

6. When autumn comes, a flock of wild geese begin to fly south, forming a herringbone, a word, a circle and a word.

Extended data;

(1) quantifier, refers to a very short time.

For a while, in daily life, it is pronounced as a consonant to express the concept of time, such as "for a while". This concept of time is vague and does not specify the length of this moment. Can be associated with "wait a minute" in "wait a minute". Fifteen minutes is a quarter of an hour, and an instant means the same thing. At the same time, according to the custom, the concept of time expressed by the word "a moment" can be understood as no more than fifteen minutes.

(2) quantifier, refers to in a very short time. There will be a meeting in the factory later.

(3) Used in front of two antonyms respectively, indicating that the two situations appear alternately. It's sunny for a while and cloudy for a while.