In the end,he decided to send the sick child to hospital.A. At onceB. At lastC. At firstD.

In the end,he decided to send the sick child to hospital.
A. At once
B. At last
C. At first
D. By the end

A. At once(答案→)B. At lastC. At firstD. By the end解析：句意:最后他决定把生病的孩子送往医院。send sb to sp.某人送往某地；the sick child生病的孩子； At once 立刻；At first首先，起初； In the end 和 At last都有“最后，最终”的意思。故选B。

我学会了