Answer:
1.96 Decreased; 2.06 Increased; 2.28 Increased; 1.83 Decreased
Explanation:
Let's present it in a table
      Current Assets  /   Current Liabilities   =    Current Ratio
Beg.   1,000,000       /            500,000            =     2
In A. Current Assets increased and Current Liabilities Increased.
a.       1,020,000       /             520,000            =   1.96 Decreased
In B. Current Assets decreased and Current Liabilities decreased.
b.          970,000       /              470,000           =    2.06 Increased
In C. Current Assets increased and Current Liabilities remained the same.
c.       1,070,000        /              470,000           =    2.28 Increased
In D. Current Assets increased and Current Liabilities Increased.
d.        1,3720,000     /               720,000          =   1.83 Decreased
Current ratio moves when a current asset or current liability moves.