Fill in the Blanks MCQs, ASSISTANT PPSC (BPS - 16) 2016, PPSC Solved Past Papers MCQsFill in the blank. “A baby lives ___ milk.”A. By B. At C. For D. On Which Pakistani film was Faiz Ahmad Faiz associated with as writer of its screenplay?Who gave the advice of digging a defensive trench in the Ghazwa-e-Khandaq?