Guys, help me please
rewrite the sentences into the passive, as in the example.
1. andreyeva had won the kazakhstan karting championship four times before she started formula racing.
example: the kazakhstan karting championship had been won four times by andreyeva before she started formula racing.
2. her speed on the track surprised her coaches.
3. russia holds the masters championship.
4. andreyeva may win the formula 1 world championship one day.
