I've always been ______ about the effectiveness of the alternative therapies. A. doubtful B. dubious C. sceptical D. suspicious

Choose the option A, B, C, or D that best fits the sentence.

I've always been ______ about the effectiveness of the alternative therapies.

A. doubtful 
B. dubious
C. sceptical 
D. suspicious

Trả lời

Chọn C

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