“How long do you suppose it is _______ he left for Japan?” “No more than half a month.” A. when B. before C. after D. since 答案:D问句的基本结构是“It is +时间段+since 从句”,其原句型是 I suppose it is no more than half a month since he left for Japan. 假若对此句中的 no more than half a month 提问,则可得到提问句。The novel is so great. It is well worth ________ again. A. read B. to read C. reading