It has been rather costly to install the machinery, but it will prove to be worth the money ________
It has been rather costly to install the machinery, but it will prove to be worth the money ________.
A) in the long run
B) in conclusion
C) at long last
D) at the end
请解释下原因。谢谢。
A) in the long run
B) in conclusion
C) at long last
D) at the end
请解释下原因。谢谢。

最佳答案