The report shows that we are making progress we need to make greater efforts.A. but thatB

The report shows that we are making progress we need to make greater efforts.
A. but that
B. but for
C. however that
D. no matter how

(答案→)A. but thatB. but forC. however thatD. no matter how解析：考查连词。That we need to make greater efforts是show的第二个宾语从句，but表示转折关系.根据句意可知：那篇报道显示我们正在取得进步但是我们需要更大的努力。

这个解释是对的