Completed the following sentence: In 1967 Beltoise competed in three Grands Prix with a Formula Two Matra MS7 1.6 litre Cosworth, and finished seventh at both Watkins Glen and Mexico City. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ 1968<unk>Beltoise<unk>resumi<unk>la saison<unk>ave<unk>une voiture de F2<unk>maisà partir de la seconde course<unk>ave<unk>une machine de Formule1<unk>et<unk>a fini<unk>de<unk>de<unk>de<unk>de<unk>de<unk>de<unk>de<unk>
1968 Dutch Grand Prix. 1969<unk>he was placed in Ken Tyrrell's Matra team, while the works V12 engine was developed driving alongside Jackie Stewart, and finished second in the French Grand Prix. Beltoise returned to the works Matra team for both 1970 and 1971. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️