Europe has achieved more in controlling
题型：选择题
问题：
Europe has achieved more in controlling the AIDS virus than Asia in the past ten years, ________ the number of people infected with the virus is going up sharply.
A．when
B．that
C．so that
D．where
Europe has achieved more in controlling the AIDS virus than Asia in the past ten years, ________ the number of people infected with the virus is going up sharply.
A．when
B．that
C．so that
D．where