13．She works as a typist in a company．However she doesn’t like the work because calls f

问题补充：

13．She works as a typist in a company．However, she doesn’t like the work, because calls for patience and speed．

A. which

B. it

C. what

D. She

答案：

A. which

(答案→)B. it

C. what

D. She

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