He seems to know a lot about you! How long have you ______ him?

Answer as guest — Start Free Practice Test to earn Practice PointsHow to earn pointsAsk a question+3Answer a question+1Someone answers yours+1Your Q gets upvoted+1Pioneer bonus (first 5)+5, ask questions & climb the leaderboard!

A knew
B know
C known
D been knowing

Show answer and explanation

Answer: C. known

Explanation: Certain "stative" verbs like know are generally not used in the continuous (-ing) form. The present perfect ("have known") is correct here.

Answering after opening this box earns no Practice Points.

4 answered 25% got it right

Rules for asking and answering

He seems to know a lot about you! How long have you ______ him?

More questions like this