His whole schooling no more than six years． [ ] A．adds to B．adds up C．adds up to
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His whole schooling ________ no more than six years．
[]A．adds to
B．adds up
C．adds up to
D．is added up to
试题答案
答案：C
解析：add在句中意为“加起来达到……”。该短语无被动语态因而排除D；add to意为“增加”，add up意为“加起来”。根据句意排除A |