话题 be proud of doing sth

话题 be kind to do sth

话题 Be John what he may

话题 assign sth to be done

话题 there be sth/sb doing

话题 be known to do sth

话题 There is going to be

话题 There is known to be…

话题 see sb be doing sth

话题 be easy to do sth

话题 be about to do sth

话题 be too difficult to do

话题 how it came to be

话题 be a study in sth

问题 It won't be until...before...这个句式正确吗

And at current rates it won't be until 2086 before all rural African girls can have a secondary education.  翻译：照目前的成长率来看，要到2086年，所有住在偏远地区的非洲女孩才能得到中等教育。疑问：关于until有一个强调句：It is not until ... t...