Can you help me find the answer for this?

A. B and C formed a partnership with the following contributions to be delivered on August 15, 2019: A to contribute P10000000 B to contribute a specic parcel of land C to contribute a specic twostory building 1.) Suppose A gave his P10000000 only on August 15, 2020, what is his additional obligation? 2.) Suppose B delivered the land on August 15. but the partnership was evicted by the real owner "M". what is the obligation of B? 3.) Suppose C failed to deliver the building on time because it is possessed by "N" as a lessee. what is his obligation to the partnership