1.Onli when he returned __we find out the truth.2.Hardly__he

1.Onli when he returned __we find out the truth.2.Hardly__he got to the cinema__the film began.3.Not until the teacher came __he finish homework.4.I can not sing.__can Xiaoming.5.So difficult a problem is it__I can not work it out.6.The boss demanded that the work ___ ___ ___(finish)several days ahead ___the deadline.7.The boy denied __(steal)money from the supermarket.8.young ___he is ,he knows a lot of things.9.I have been to Beijing,__ __he.10.No sooner __he started__it began to rain.11.Never __I dream I would see you here .12.On the right __two maps of China.13.__(go)are they days when Chinene people were oppressed.14.There__(go)the bell.