the work was very difficult, they managed to finish it in time. A. Because B. Th
来源：网络
时间：
推荐文章
90. ____ the work was very difficult, they managed to finish it in time.
A. Because B. Though C. Therefore D. But
试题答案
B
90. ____ the work was very difficult, they managed to finish it in time.
A. Because B. Though C. Therefore D. But
B