To these high flown expressions, Elizabeth listened with all the insensibility of distrust; and though the suddenness of their removal surprised her, she saw nothing in it really to lament;

it was not to be supposed that their absence from Netherfield would prevent Mr. Bingley's being there; and as to the loss of their society, she was persuaded that Jane must soon cease to regard it, in the enjoyment of his.

老师，这里为什么是it was not to be supposed, 而不是it was not supposed 呢? 是（it= that their absence from Netherfield would prevent Mr. Bingley's being there）这件事在将来not to be supposed 吗？