The correct verb form is "opened".
The sentence is referring to an event that occurred in the past, and "opened" is the simple past tense form of the verb "open".
The sentence becomes:
The game opened with the national anthem.
The correct verb form is "opened".
Each question has a sentence that has an underlined part. Choose the option which rephrases the underlined part in the most appropriate manner in terms of grammar and usage.
In an attempt to boost their profits, many edible oil-producing companies have been engaging themselves in propaganda against commonly used oils and promoting exotic and expensive varieties of oils \(\underline{as\ more\ healthier\ options.} \)