2. 外语
  3. Agriculture is the country’s chief source of wealth, wheat______by far the biggest cereal crop.

Agriculture is the country’s chief source of wealth, wheat______by far the biggest cereal crop.

admin2016-10-07  63
问题 Agriculture is the country’s chief source of wealth, wheat______by far the biggest cereal crop.
选项 A、is
B、been
C、be
D、being
答案D
解析 非限定动词题。分析句子结构可知，本句需要一个非谓语动词结构在句子中作状语，故[D]正确。
转载请注明原文地址:https://kaotiyun.com/show/IYPK777K
0

专业英语四级

相关试题推荐
随机试题
最新回复(0)