how happy the mother was_（ see） her lost son again.Sun yang has become more famous because of__(win)the gold medals.怎么填?正确的形式

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how happy the mother was___（ see） her lost son again.
Sun yang has become more famous because of____(win)the gold medals.怎么填?正确的形式

两个都加ing

how happy the mother was___（ see） her lost son again.Sun yang has become more famous because of____(win)the gold medals.怎么填?正确的形式