Li Lei didn’t meet the famous American professor ______ he was on holiday last year.

admin2013-10-30  45

问题 Li Lei didn’t meet the famous American professor ______ he was on holiday last year.

选项 A、unless
B、until
C、if
D、whether

答案B

解析
转载请注明原文地址:https://jikaoti.com/ti/1puMFFFM
0

最新回复(0)