Tom and I后用has还是have

Tom and I后用has还是have You and I后面是am还是are?或者have还是has?Jack and Tom is还是are? Tom and Jim ＿a computer .填have 还是has 我的苹果比Tom的少,是I have fewer apples than_____,填Tom还是 Tom has?还是都 I have a sister,Tom and Jake( ) a sister,too.a.have b.has c. 现在完成时I用have还是has? What I do后接has还是have Tom has five pens and I have two pens.(改为同意句） Tom have a basketball还是Tom has a basketball呢 I后面加have还是has?如果have/has后面是复数,主语是I,用have还是has? mr black and mrs black have a son called tom.为什么用have而不用has 是Tom and I还是I and Tom?