---He, together with his parents ______going to visit Shanghai in July. How about you?
---I'm afraid I have to stay at home______.A.are; on my ownB.is, by myselfC.is; by my ownD.are; on myself
网友回答
B解析就进原则与by oneself的用法。介词with后的谓语动词应和它前面的主语he一致，故A,D错。by oneself是“独自”的意思。故选择B。