The time he has devoted in the past 10 years______ the disabled is now considered__________ of great value.

A. to helping; being B. to helping; to be

C. to help; to be D. helping; being

B

【解析】

試題分析：考察固定短語(yǔ)和介詞。第一個(gè)空考察介詞的使用，devoted to doing致力做某事，其中to為介詞，故后面用v-ing形式。第二個(gè)空考察固定短語(yǔ)，consider to be 被認(rèn)為是…該句意思為：過(guò)去那他致力于幫助殘疾人的十年現(xiàn)在被認(rèn)為具有極大價(jià)值。故選B

考點(diǎn)：考察固定短語(yǔ)和冠詞

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