Change into Active: Who can count the stars in the sky?

A. By whom can the stars in the sky be counted?
B. By whom can star in the sky counted?
C. By whom could the stars be counted in the sky?
D. By whom could the stars in the sky by counted?

Answer

Correct Answer: A. By whom can the stars in the sky be counted? 


Detail About MCQs

We can say that ,
The above given sentence is given in Passive Voice :-
Use structure “By + whom(Question word) + auxiliary + subject + be + past participle + ?”
By whom can the stars in the sky be counted?
Hence , required sentence is option A.