Study the underlined words in the following sentences:
• “In recent years, the growth of online social media, such as Facebook and Twitter, has been explosive.”
• “For example, since its launch in 2004, Facebook’s user base has grown…”
We can infer that the underlined words are being used in which tense?
Ⓐ Past Perfect.
Ⓑ Simple Past.
Ⓒ Future Tense.
Ⓓ Present Perfect.
Ⓔ Simple Present.