---I went to see my friends off at the airport.
---Is that_____you were late for the important meeting?
A. because B. why C. how D. reason
---I went to see my friends off at the airport.
---Is that_____you were late for the important meeting?
A. because B. why C. how D. reason
B
考查连词用法。此处对重要会议迟到探究原因。故选B。