题目内容

With the help of the new technology, you __ e-mail your friends by mobile phone.
A．canB．mustC．needD．should
A
本题考查情态动词，A) can能够B) must必须 C) need需要D) should应该，句意：在新科技的帮助下，你可以通过手机给朋友发邮件。选A。
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