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to do and do是不是错的?to do, and do呢? 只记得3个以上的时候可以省略to
这两天脑子短路了,这么2的问题都给绕晕了 OG 94 : the recent surge in the number of airplane flights has clogged the nation's air traffic control system,to lead to 55 percent more delays at airports, and prompts fears among some officials that safety is being compromised.
c. to lead to a 55 percent increase in delay at airports and prompt.
我知道C 是错的,主要觉得to lead表目的在这里不对, 但是看到OG上说to lead和prompt不平行,就2了,一直以为后面的to都能直接省略呢, 是不是说明必须3个以上才能省略?期待NN解答~ |
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