Our failure___ourselves to modem life often cause us trouble

问大家几道英语单选题?
1 our failure --outselves to modern life often causes us trouble in our work.
A to adopt B to apply C to adapt D to act
2 with all this work on hand ,she - to the dance party last night.
A ought't to go B had't gone C shouldn't have gone D mustn't have gone
3 your -- in teaching is different from mine.
A altitude B approach C fuel D lump
4 he always takes pride in his work .he is very--
A humble B devoted C respective D formal
5 the ghostly presence was just a(n)-- sensation of some people
A objective B subjunctive C subjective D objected
6the -- of the member countries is supposed to be held recently at geneva
A summit B summary C suffering D summon
希望能告诉我各个答案和原因
第一个 可以帮翻一下么