—ThepopgroupS.H.Eissaidtohavebeeninvitedto2013CCTVSpri...

问题详情：

 — The pop group S.H.E is said to have been invited to 2013 CCTV Spring Festival Show.

— Really? It’s a long time _______ they three performed together on the mainland.

A. since                         B. that                  C. when                       D. before

【回答】

A

知识点：连词

题型：选择题