问题补充:
to looking after her sick mother for two years,she badly needed a holiday.
A. Having devoted
B. Devoted
C. To be devoted
D. To have devoted
答案:
A. Having devoted
(答案→)B. Devoted
C. To be devoted
D. To have devoted
解析:本题考查非谓语动词。be devoted to致力于,专心于,在句中作状语,故选B。句意:专心于照顾她生病的母亲两年了,她非常需要一个假期。
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