1.B not until引起的时间状语置于句首时,句子的主谓部分要倒装,从句部分保持不变。
例如,Not until 1998 did he return to his hometown.直到1998年他才回到家乡。
2.Ctell,ask,get后面均跟to do sth.如tell/ask/get sb to do sth.
而have是have sb do sth.
1. B. Not until 后面接部分倒装,A没主语,CD没倒装
2. C. tell/get/ask sb to do sth.只有have+sb do sth
1. B not until等否定词防在句首,谓语使用倒装
2. C have sb. do sth. = get sb. to do sth.