21. At first she was not accustomed to in the new company but eventually she managed to

问题补充：

21. At first she was not accustomed to in the new company, but eventually she managed to get through and get on well with her companions.

A. working

B. works

C. worked

D. work

答案：

(答案→)A. working

B. works

C. worked

D. work

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