I haven't seen Peter for a long time.I_____(miss) him very much.

I haven't seen Peter for a long time.I_____(miss) him very much.
I haven't seen Peter for a long time.I_____(miss) him very much.

I haven't seen Peter for a long time.I_____(miss) him very much.
答案：miss.
翻译：我很长一段时间没有见过皮特了.我非常想念他.
前句使用了现在完成时havent seen,它强调对现在造成的结果/影响.
而后句恰恰是表明这一点,所以它用一般现在时最好.