How to get phase shift in this task and in general?
Hint: First take the phase of the current signal as 0.

Then you will know the phase of the voltage signals across each element (R, L, and C) due to the nature of those components.

Knowing the phase and voltage (because they're givens in the problem) across L and C, you can find the values of L and C.

Now you only have to find a resistor value that gives 220 V magnitude across the source. 

From there you'll get the phase of the source.

Then, since the problem asked for the phase of the current relative to the voltage source rather than the phase of the voltage source relative to the current, you'll just negate the phase and report that as the current phase. (I.e. instead of saying "the voltage leads the current by x radians" you'll say "the current lags the voltage by x radians")