Please help on lewis-acids vs bases

Identify the Lewis acid and Lewis base from among the reactants in each of the following equations. Match the words in the left column to the appropriate blanks in the sentences on the right. Fe3+(aq)+6NH3(aq)Fe(NH3)6(aq): is the Lewis acid and is the Lewis base. AlF3+NH3AlF3NH3: is the Lewis acid and is the Lewis base. Cl(aq)+AlCl3(aq)AlCl4(aq): is the Lewis acid and is the Lewis base. X Incorrect; Try Again; 4 attempts remaining