______the Internet is of great help, I don’t think it’s a good idea to spend too much time on it.
A．IfB．WhileC．Because D．As
B
考查狀語從句（從屬連詞的選用）題干前半句的含義是：網(wǎng)絡(luò)有很大的幫助；后半句的含義是：我認(rèn)為花太多的時(shí)間在上面沒有好處。根據(jù)題干含義，顯然需要一個(gè)表轉(zhuǎn)折或讓步的詞，即while，盡管。而A是如果，表?xiàng)l件，C是因?yàn)�，表原因，D是因?yàn)楹拖瘛�，表原因和方式�?/div>
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