A synonym for mastery might be:

Two that immediately come to mind are virtuosity and dexterity.

A synonym for mastery might be proficiency or comprehension.

Explanation:

Mastery means to have "comprehensive knowledge or skill in a subject or accomplishment. " (Source: Oxford).

Proficiency means to have "a high degree of competence or skill; expertise. " (Source: Oxford).

Comprehension means to have "the action or capability of understanding something. ".

Comprehension may be more mental focused than the connotation of mastery, but it still fits.

an interrogative sentence is a type of sentence that asks a question, as opposed to sentences that make a statement, deliver a command, or express an exclamation. interrogative sentences are typically marked by inversion of the subject and predicate; that is, the first verb in a verb phrase appears before the hope i

because he is using a description to provide evidence to support his argument.

hope this could