-----------------大家来看看这道题吧---------------------------

静默如林

OG12综合  
67.Affording stategic proximity to the Strait of Gibraltar, Morocco was also of interest to the French throughout the first half of the twentieth century because they assumed that if they did not hold it, their grip on Algeria was always insecure.

D. without that, they could never be secure about their grip on Algeria.

OG 的解释： It, not that, should be used to refer back to Morocco; could never be secure about their grip is awkward.

请问 这里 that 和 it 的指代有什么不同？？ 为什么不能用that??

kingarthur00

ls的上过XDF吧：p）

jaze

如果你用that的话， 你指的是谁啊？ that 不能裸奔

kingarthur00

看下这个帖子，希望有帮助
http://forum.chasedream.com/GMAT_SC/thread-43901-1-1.html