请教一道IS和一道ISE~~~各位帮帮忙啊

Emma_xhmUID: 2644029

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The director's insistence that there be adequate stage lighting and professionally installed backdrops in the theater (was not obstinate but a determination) to provide a safe work environment for the actors and stage crew.

. i$ Y5 Z* R3 z0 ?9 l, T+ k  b$ eB.was not obstinate but determined
E.resulted not from obstinacy but from a determination
: j0 k; q1 N" h$ k9 u0 c我选的是B，为什么不对呢？答案是E  

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A powerful advocate to equal rights，Belva (was) twice a candidate for President long before the Nineteenth Amendment to the Constitution allowed women to vote.
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+ U- `* p8 {- N$ A2 `为什么was用错了？？？

ZhangZhengyuanUID: 2515746

哎…… 自私啊

Emma_xhmUID: 2644029

？？？你干吗啊 2# ZhangZhengyuan

深海lavenderUID: 2350207

1.看主语.主语是insistence,B中的determined to是以人为主语的,不能跟在insistence后面.
; B$ F; M) k4 x9 A& y6 Z2.我觉得应该用had been.因为是在过去某个时间前完成的行为.