1.I with my friends ___(be) sing songs,2.I with my family ___(be) sing songs.

问题描述:

1.I with my friends ___(be) sing songs,2.I with my family ___(be) sing songs.

主谓一致原则:主语+with结构中,谓语动词的单复数由主语决定,即with前面部分.此句主语是I,则谓语是am或was.