问题
选择题
The parents had to sell their car for money ______ they wanted to save their child's life. [ ]
A. if
B. whether
C. because
D. so
答案
答案：C
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The parents had to sell their car for money ______ they wanted to save their child's life. [ ]
A. if
B. whether
C. because
D. so
答案：C