问题
选择题
With online course Crazy English has over 20 million students all over China _____the class through the Internet.
A．attending
B．attended
C．attend
D．to be attending
答案
答案：A
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With online course Crazy English has over 20 million students all over China _____the class through the Internet.
A．attending
B．attended
C．attend
D．to be attending
答案：A