—Once a neighbour accused me ________ playing my radio too loudly .　—Oh, you had the right to defend yourself ______ the charge.

As students, we have many duties to perform, with improving our ability to learn _______. 

Though in fact he got      , there was no doubt that he had meant to offer help.

Thanks to the economical development, workers' wages have increased ________ as far as 200% in the recent three years.

She feeds the baby____milk and hay____her cattle.