【简答题】He didn’t have any money for a bike.(改为肯定句) He _________ __________ money for a bike.
【判断题】碘量法中,淀粉指示剂一般是在近终点时加入,否则会影响滴定终点的到达
【单选题】Last night Dad and Mum didn't come back home _____ I finished my homework. [ ]
【单选题】Last night Mr. Crook didn't come back at the usual time. ___, he met some friends and stayed out until midnight. [ ]