下面几个句子正确吗?
1. If either David or Jannet come ,they will want a drink.
2. Alice as well as Jane were there.
3What we have to learn are the pieces of language that produce inversion
4The headmaster with the rest of the staff were having a heated discussion.
这是几个关于主谓一致的句子,符合语法吗?
谢谢各位高手的指教!!!!!!!!
