Forks and knives are/is at dinners 句中谓语是用单数好复数好?

Forks and knives are/is at dinners 句中谓语是用单数好复数好? Some bags and a pig后面谓语用单数还是复数?用is还是are? All is / are good 谓语动词用?单数复数? the lost谓语动词是单数还是复数?one and a half peach 后面是is or are? A and B is/are... He and she have/has... 这种情况谓语动词用单数还是复数啊? 如果主语是单数谓语是不是用is 如果是复数的话是不是用are如果主语是第三人称复数 第二人称复数都用are吖 Two is enough ,为什么谓语动词用的是单数呢?而 Ten of them are teachers 却是复数 this kind of trees is/are rare?主语是kind 还是trees,谓语动词应该用单数复数? "不可数名词+and+可数名词复数"时,后面的谓语是用单数还是复数? There are lots of books and bookcase中书柜是用单数还是复数? There is还是are a series of accidents?就是谓语动词用单数还是复数 在英语句中,集体名词做主语,其谓语动词是用单数还是复数?举例说明一下.