there is so much work_____today would you be kind enough to lend me a hand?A,having done B,to be done C,being done D,will be done为什么选B而不选D.

there is so much work_____today would you be kind enough to lend me a hand?A,having done B,to be done C,being done D,will be done为什么选B而不选D.
there is so much work_____today would you be kind enough to lend me a hand?
A,having done B,to be done C,being done D,will be done
为什么选B而不选D.

there is so much work_____today would you be kind enough to lend me a hand?A,having done B,to be done C,being done D,will be done为什么选B而不选D.
B,to be done
因为一个句子只有一个谓语.
there is 已经有谓语了,后面的将来时,要改成不定式.

把句子划一下主谓宾

这是固定格式，there is something to be done,有什么要做。