there is/are sth worry with A and B.用is对还是用are对?

there is/are sth worry with A and B.用is对还是用are对? How many apples?There are one hundred.用are对还是用is对? more and more 前面用there are 还是there is 是 there is a lot of people 对还是 there are a lot of people 对 there is a pen and some rubbers on the table.这里应该用is还是are? a few 前面用there is还是there are There is(are) father,mother and I 是用is还是are A and B are doing their homework. 对A and B提问 答案who is doing jim and i are working对jim and i划线部分提问是用who is working 还是are there （）a pen,some books and pencils用 is还是are There ___ a pen and two pencils on the desk.用is还是are~ There ____ for you to worry about her. A.is not need B.are n