A tricky problem is ______ to solve.
举一反三
- The problem is ____ difficult for me _____ solve.
- solve the problem
- a way to solve a problem: ______
- There are many problems wait for people to solve and theses problems are tough. A: Many tough problems are waiting for people to solve. B: Many problems are waiting for people to solve and these problems are tough. C: Many problems which are tough are waiting for people to solve. D: Many problems are waiting for people to solve even though they are tough.
- Some problems may appear too (1)_____________ to solve but the first step is to (2)___________ it in size, and then it will be easier to solve.