Nature of the Bonds

Electronegativity values of atoms involved:

C - 2.5
H - 2.2
O - 3.5

The difference between the Carbon and Hydrogen values is 0.3, which means that the bond between those atoms is very covalent.

The difference between the Carbon and Oxygen values is 1, which means that the bond between those atoms is  moderately covalent.

The difference between the Hydrogen and Oxygen values is 1.3, which means that the bond between those atoms is slightly covalent.