taken from manutd.com official manchester united FC website:

...United were producing the better of the football with Ronaldo conjuring jaw-dropping moments of individual skill...

...Ronaldo then hit the post as United hunted for the lead and had Bolton on the ropes. Giggs’ cross was headed into the air and the 21-year-old Portuguese winger smashed a volley off the post...

...After an hour Ronaldo was again denied his second league goal of the season; this time a long-range left-footed strike bounced off the base of the post. However, a goal for the Portuguese winger didn’t take long to come...

...Five minutes later Rooney bulldozed his way through Bolton’s brutish defending and when a left-footed shot appeared likely, he flicked the ball with his right boot to the far post, where Ronaldo rushed in and stabbed the ball home. It was no more than he, and United, deserved. Steve Bennett’s (the referee)pettiness got the better of him and booked Ronaldo for practically jumping into the crowd, but it is unlikely the United wide man will mind...

...Before the 90 minutes were up, Ronaldo added a second to make it 4-1. Two substitutes Gerard Pique and van Nistelrooy combined to find Ronaldo on the right. Now playing with confidence, turned Ricardo Gardner(bolton defender) inside out for the umpteenth time and fired his shot left-footed past Jaaskelainen (Bolton defender)...

and The New Paper on 2 Jan reported:

...And after a difficult time off the pitch, Ronaldo is starting to get the message that more direct play and fewer tricks will bring greater reward. On any other day, two goals and two shots which cannoned off the post would have seen Ronaldo carry off the man-of-the match honours with something to spare...

and that's not all..

The Straits Times 2 Jan reported:

...then in the final minutes, Ronaldo also produced a dazzling run, mesmerising N'gotty(Bolton defender) with a series of step-overs before drilling home left-footed...

...Cristiano Ronaldo was the star performer that day, scoring twice, and Ferguson(Man U manager) is glad the winger is entering the match off another brace.
While his first goal against Bolton was a simple tap-in, his second was pure brilliance.
A series of step-overs left Bruno N'gotty for dead, and once he had sight of goal, Ronaldo drilled in an unstoppable shot in stoppage time.
"He's had a difficult time but he's young and coming out of that," said Ferguson of the inconsistent Portugese.
Ronaldo had a tough year, with the death of his father being followed by unfounded rape allegations...