She understood what I was talking about,
题型：选择题
问题：
| She understood what I was talking about, _____ it was the first time we had spoken together. |
| A. whether B. even though C. as though D. since |
| She understood what I was talking about, _____ it was the first time we had spoken together. |
| A. whether B. even though C. as though D. since |