Question

do you know() next, no that's why they are all waiting here for further information

a. what should we do b.what to do c.what can we do

Answer 1

选B
括号里是宾语从句，而宾语从句要用称述句形式，所以A不选，若A改为 what we should do也对。
C的意思不合题意，整句翻译为：“你知道接下来要做什么吗？不知道，这就是为什么他们都在等待进一步的信息的原因了。”

Answer 2

Do you know( a.what should we do) next?
No,that's why they are all waiting here for further information.

Answer 3

b= =，know后面是宾语从句 用陈述语气 a c都是疑问语气 排除

Answer 4

选b，what to do。如果是a应该是what we should do，选c的话是what we can do。

Answer 5

do you know() next, no that's why they are all waiting here for further information
a. what should we do b.what to do c.what can we do

选 B
因为有 do you know 说明是问句，问句中，主谓要倒装，AC错。
此外，what to do 是将来时，要做什么 符合语境

Answer 6

b因为首先know后要跟宾语从句，语序是正常语序，ac都可以被排除；其次，next表将来，to do不定式变将来，符合语境。所以选b.。