He found it very difficult____________(赶上)the development of physics.

This question is ______ than that question. A: more difficult B: the most difficult C: the more difficult D: most difficult

Which language is ____ ，English, French or Chinese? A: difficult B: the difficult C: more difficult D: the most difficult

I don't think English is（）a language as Russian. A: difficult as B: as difficult C: more difficult D: difficult

It is ______ problem that few people can solve it. A: such difficult a B: such difficult C: so difficult a D: so difficult

______ for us to make ourselves understood in English. A: That found difficult B: That was found difficult C: It found difficult D: It was found difficult

【单选题】It is () to solve A. a rather difficult problem B. rather a difficult problem C. rather difficult a problem D. a problem rather difficult

It was ____ that she couldn’t finish it by herself. A: so difficult a work B: such a difficult work C: so difficult work D: such difficult work

It was () that he couldn’t finish it alone. A: a so difficult job B: such a difficult job C: so a difficult job D: such difficult a job

I must admit that the situation is the (difficult) _____one that I have ever imagined. A: most difficult B: more difficult C: difficulties D: difficult