In this task, you will be shown an incorrect English sentence. You need to generate a corrected form of the input sentence.

Example input: The car's wheel are loose.
Example output: The car's wheel is loose.
Example explanation: The instance of are is replaced by the word is. This makes the sentence grammatically correct.
Q: And there is a lot of critics concerned that the reqired testing is so long that declined the valueable for patients . 
A:
And there are a lot of critics concerned that the required testing is too long to be valuable for patients . 