Sometimes what appear to be problems ____ easily solved. (is, are)
举一反三
- It is becoming ______ clear that this problem will not be easily solved.
- With the introductio of the electric computer, there are no complicated problems can be solved.
- 智慧职教: With the introduction of the computer, there are no complicated problems _____ can be solved.
- The ______ environmental problems must be solved by all the nations.
- ( ) I admit that there are problems, I don’t agree that they cannot be solved.