We find____difficult____this problem

the problem is (what we can do/deal with problem) we have a problem ___ the computer We will talk over the problem later We will talk over the problem latter. when we are faced with the problem,. When can we discuss the problem? We should be p() with problem students. the problem is ------we should do-----him How could we deal with this problem? we are surrounded that simplifies our problem. problem “We have found several potential problem”这句中“problem”是否未加S?