问题补充:
they were not rich, they tried their best to send their child to the best school.
A. However
B. Because
C. Even though
D. So
答案:
A. However
B. Because
(答案→)C. Even though
D. So
解析:考查连词:A. However无论怎样B. Because因为C. Even though即使D. So因此,语境,虽然他们不富裕,但还是尽量把孩子送到最好的学校。故选C