An efficient supervisor is not so easy to come -----. (Select the word/phrase that appropriately fills in the gap)
A
by
B
for
C
to
D
back
Correct Answer: by
Come by - পাওয়া। Come back. - ফিরে আসা। Come for - কোন কিছুর জন্য। সঠিক উত্তর - come by. An efficient supervisor is not so easy to come by.