Revised as: I saw colorful wildflowers on the grass and heard birds singing happily.

Interpretation and analysis:

According to the original sentence "I see colorful wildflowers blooming on the grass and birds singing happily", we can find that the first half of this sentence uses the word "see" to indicate seeing colorful wildflowers, but not "see" birds singing, which is a lack of keywords. Singing should use "listening", which should be changed to "I see colorful wild flowers blooming on the grass and hear birds singing."

Extended data:

This type is an unmatched sentence, similar to:

1, people's living standards are constantly improving. (If the subject-predicate collocation is improper, the word "improvement" should be changed to "improvement")

His revolutionary spirit always comes before my eyes. ("Spirit" and "Emergence" cannot form a subject-predicate relationship. You can change "spirit" to "image")

What a beautiful picture the rustling waves and the silver sea make up. Both "wave" and "sea surface" are subjects, in which "wave" cannot form a subject-predicate relationship with the predicate "component", so "rustling wave" should be removed or another subject-predicate relationship should be formed.

Due to reasonable close planting and strengthening management, the rice production in this county is generally growing well. ("Yield" and "growing well" cannot form a subject-predicate relationship, so "yield" should be deleted and "rice" should be used as the subject)