Question

Manisha keen to participate in the upcoming play. (A) are (B) has were (D) is​

Answer 1

Manisha is keen to participate in the upcoming play

Is - option (d) is your answer

Answer 2

Though your questions looks incomplete, I guess you are finding a word to put before keen.

In that case, the answer is D) is

Manisha is keen to participate in the upcoming play.