It is ______ difficult a math problem ______ no one can solve it.
A: so; that
B: such; that
C: so; but
D: such; but
A: so; that
B: such; that
C: so; but
D: such; but
举一反三
- It is ______ problem that few people can solve it. A: such difficult a B: such difficult C: so difficult a D: so difficult
- This math problem isn’t so difficult that I can work it out ________.
- So difficult that they could not deal with it. A: the problem was B: was the problem C: is the problem D: the problem be
- This math problem isn’t so difficult that I can work it out ________. A: easily B: usefully C: loudly D: quietly
- ________ research has been done into this difficult and complicated case, so we believe someday we can solve it.