I. 单项选择。A．dropped。C．dropped。have started D．dropping。but some one called and I couldn't。
oceans单元测试2Tag内容描述：
1、2019-2020年高中英语 Unit2 Sailing the oceans单元测试2 新人教版选修9笔试部分：I. 单项选择26.The teacher told us that light________faster than sound.Atraveled Bhad traveledCis traveling Dtravels27What were you doing when Lucy________in yesterday?I had just finished my homework and________to take a shower.Adropped;was starting BHad dropped;startedCdropped;have started Ddropping;start28.I________to go fora walk，but some one called and I couldnt。