The determined mother has devoted all she has to ________ her son out of trouble. A．helping ..

Question

The determined mother has devoted all she has to ________ her son out of trouble. A．helping B．help C．have helped D．having helped

Answer 1

A

devote后面加to sth或者to doing sth。 to在这里属于介词，后面应该接名词或v-ing形式，所以，应该是devote oneself to sth/ doing sth。D选项表示已经完成了动作，不符题意，故选A.