－How are you managing to do your work without an assistant?-

Get along means the same as get by.
例句：You can't get along without water...（没有水你将无法活下去）
= manage,survive
(get along 的意思就是度过,活下去）
上面答案其实跟manage相对称的
上面问how can you manage...
下面回答i manage(get along)...