题干
The most important thing ______we should think about is ______ we should do next.
A：what; that
B：that;that
C：that;what
D：which;what
答案(点此获取答案解析）
C
The most important thing ______we should think about is ______ we should do next.
A：what; that
B：that;that
C：that;what
D：which;what
