This problem is ______ difficult __________. A.so; that few
This problem is ______ difficult __________. A.so; that few
This maths problem is so difficult that only __________ stud
This math problem is so difficult that few students can work
this is such a difficult problem that few students can work
This math problem is so difficult that only ( ) students can
This math problem is so difficult that only ________ student
This exercise is difficult A so ,that few of us can do Btoo,
This exercise is ____ difficult ____.A.so ; that few of us c
It is so difficult a problem that ____ student in this class
1.This is ___ difficult problem that few studants can work i
This problem is more difficult than that one.This problem( )
This exercise is so difficult that few of us can do it.为什么后面