निम्नलिखित में से कौन-सा वाक्य प्रेजेंट परफेक्ट टेंस (Present Perfect Tense) का उदाहरण है? a. She plays cricket every Sunday. b. She is playing cricket now. c. She has played cricket before. d. She had played cricket before the match started.

Identify the tense of the given sentence: 'The world has been infected with our ill-manners.'

Select the most appropriate option for the given blank. By the time you ______ my place, I will have left.

Select the most appropriate option to fill in the blank: 'Nisha ________ for her toy, which she misplaced last week.'