试题题干
Most of Britain was once covered with thick, deciduous forests in which （）predominated.
参考答案
正确答案：
试题解析
英国的大部分地区曾经覆盖着厚厚的以橡树为主的落叶林。 答案为A。
Most of Britain was once covered with thick, deciduous forests in which （）predominated.
英国的大部分地区曾经覆盖着厚厚的以橡树为主的落叶林。 答案为A。