--the problem is too difficult.--let's ask Mary.maybe she ha
--the problem is too difficult.--let's ask Mary.maybe she ha
The maths problem is too difficult.math为什么加s
The problem is too difficult to solve____my own
--the problem is too difficult ,can you show me ______ -----
The problem is ( ) too difficult for him.(very/quite/rather/
The physics problem is too difficult for us _____
The problem is too difficult for me.Can you_____?
The problem is too difficult for him ______
The problem is too difficult .------student can work it out
她算出来有很大困难This problem is too difficult,she had much
the problem is difficult ___ .
The problem is difficult ______.