9) Errors in sentence construction

The foll. words need the counterpart words whenever necessary:

Either ............or
Neither............nor
not..........but
not only..........but also
No sooner..........than
Hardly/Scarcely...........when
so.........that (whenever required)
If..........(then) (not compulsory)
eg. If Ram goes, then Shyam will go/ If Ram goes, Shyam will go.

1) This story is too good to be true.(Remove too)
This story is so good that it cannot be true.

2) As soon as the teacher entered the class, the students stopped shouting.(Remove 'as soon as')
No sooner did the teacher enter the class than the students stoppped shouting.