Identify the ONE grammatical error in the following sentence: "It is now clear that policymakers must knew about the economic benefits of methane monitoring, yet chose not to act."

Question

Accepted Answer

"Must knew" is incorrect; the correct past modal form is "must have known."

Answer

"Must knew" is correct when expressing strong certainty about a past fact.

Answer

There is no error; "must knew" is an acceptable informal variant of "must have known."

Answer

The error is in "chose not to act," which should be "had chosen not to act."

Crowdly

Identify the ONE grammatical error in the following sentence: "It is now clear t...

Want instant access to all verified answers on vo.uu.edu.ua?