1.I am not sure if he...(go) to the museume.
2.I shall ask him to buy me these cards,if he...(go) to the museum .
3.I do not know if Granny ... (bake) a cake.
4.I'll have lunch at home if Granny ...(bake) cake.
5.Daniel willvisit his grandparents tomorrow if he ...(be) free.