______ all the international effort being made, we have to have faith that there will be solutions _______ time to stop epidemics and poverty.
| A．As; in | B．With; on | C．As; on | D．With; in |
.China is one of the largest countries in the world, _______ 9.6 million square (平方) kilometers.
| A．to cover | B．covered | C．covers | D．covering |
The old sick lady entered the hospital, ______ her two sons.
| A．to support | B．supporting | C．supported by | D．having supported |
_______ many times, he still couldn't understand.
| A．Having been told | B．Having told | C．He having been told | D．telling |
Many things _______ impossible in the past are very common today.
| A．consider | B．considering | C．considered | D．be considered |
The students in the university are all taking courses _______ a degree.
| A．coming to | B．going to | C．leading to | D．turning to |