问题
选择题
With the help of the new technology, you _____ e-mail your friends by mobile phone. [ ]
A. can
B. must
C. need
D. should
答案
答案：A
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With the help of the new technology, you _____ e-mail your friends by mobile phone. [ ]
A. can
B. must
C. need
D. should
答案：A