Caesar Barbers problem is that______.A．he does not have a familyB．he suffers diseases caus

The problem that the population becomes aging ______ .A．is exceptional to GermanyB．has bec

There is a U. N. convention that can cover ______.A．problem between neighborsB．problem bet

One of the problems with multiple authorship is that it is hard ______A．to allocate the re

______is the first novel written by female writers that observes individual problems and s

The basic problem, however, is that there is no central control ______ the health system.A

One of the problems with wind farms is that______