问题描述:
[D30] The fact has worried many scientists ____ the earth is becoming warmer
and warmer these years.
A. what B. which
C. that D. though
请翻译,并分析.
答案 C
and warmer these years.
A. what B. which
C. that D. though
请翻译,并分析.
答案 C
问题解答:
我来补答展开全文阅读