In the following question, the sentence is given with a blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

The plane ___ to London every Saturday, so you don’t have to worry about being late.

Correct option is C

• The sentence describes a regular, habitual action: the plane’s schedule to London every Saturday.
• For habitual actions in the present tense, the third person singular (plane) takes the verb form with -s or -es.
• The base verb is fly, and for third person singular, it becomes flies.
• flew is past tense, unsuitable for a current schedule. fly is used for plural or base form, not singular.
• The sentence reads: The plane flies to London every Saturday, which is grammatically correct.
• Thus, flies is the correct answer.