Question

--How are you getting on with your work?

--I can’t do it ________ any longer; I’ll have to get help.

1. A.
   singly
2. B.
   quietly
3. C.
   alone
4. D.
   hard

Answer 1

C
本题考查的是词义辨析：singly与动词连用时意为“各别的，逐一地”，alone含义为“独自的”；再根据题干后的信息……I’ll have to get help可排除B、D。故最佳答案为C。