精选优质文档-倾情为你奉上高中时态专项练习1. Sales of CDs have greatly increased since the early 1990s, when people _ to enjoy the advantages of this new technology. A. begin B. beganC. have begun D. had begun2. Turn on the television or open a magazine and you _ advertisements showing happy families.A. will often see B. often seeC. are often seeing D. have often seen3. I hear Jane has gone to the Holy Island
