题目

新疆的瓜果特别甜，主要原因是（ ） A．降水多           B．热量足           C．土壤肥沃        D．昼夜温差大 答案：       D---How long have you ______ the map?---For two years. I ______ it in the market two years ago.A．bought; hadB．had; boughtC．had; hadD．bought; bought