be about to do sth… when和while的差别……be about to do sth… when和be about to do sth…while差别是什么?请给出明确的解析!

be about to do sth的用法 be anxious about /to do sth. be to do sth.和be about to do sth.有什么区别? be about to do sth… when和while的差别……be about to do sth… when和be about to do sth…while差别是什么?请给出明确的解析! be to do sth.和will do sth.和be about to do sth.有什么不同? 对be about to do sth when 造句 英语翻译用be about to do sth when 的句式 be about to do sth 是什么意思?同题 worry about……是 be worry about doing sth 还是 be worry about to do sth还是二者都有但有区别? will do sth, be about to do sth, be to do sth, be going to do sth 和be doing 的区别will do sth, be about to do sth, be to do sth, be going to do sth 和be doing 的详细用法及它们之间的区别 be happy （about）doing sth .be happy to do sth.哪个对? be excited about doing sth.与be excited to do sth.有何区别? how about do sth还是how about to do sth be crazy about 后面接doing sth,还是to do sth还是另外的 be to do,be about to do,determine to do sth.的意思是什么be going to do ,,,be made to do ,,,be use to do ,,,be worth to do ,,,be willing to do ,,,hope to do 的意思呢? 区分词汇cloth,clothes,clothing的区别be going to,be about to do,be to do sth.的区别 make sure to do sth、be sure of sth、be sure that 、be certain of/about的区别 what about doing sth还是what about to do sth