Answer:
juega
Explanation:
If this is present tense, the conjugation for he/she/it is "juega"
I believe it tis... Tomamos because of the "os"
1) Le diste a José ese anillo de allí.
2) Le escribimos algunas veces.
3) Te compre este collar.
4) Nos han comprado mamá y papá estos souvenirs en Barcelona.
I am not completely sure about #4 I don’t think there is a word in Spanish for souvenirs but that might be only in my country.