题目内容
| The field research will take Jone and Paul about five months; it will be a long time ____ we meet them again. |
A. after B. before C. since D. when |
试题答案
B
相关题目
题目内容
| The field research will take Jone and Paul about five months; it will be a long time ____ we meet them again. |
A. after B. before C. since D. when |
试题答案
B