--I don′ t suppose the police know who did it. --Well, surprisingly they do. A woman has been arrested and___________ now.

[问答题]Their parents don’ t know them as well as their friends do.

It isnt going to rain. -Well, I dont know. It __________ do.A. mightB. needC. wo

[主观题]1 don-t know what should I do with these books．（改为简单句）I don-t know what_________ _________with these books．

[单选题]_________ you know, David has been well lately.A.Which B.As C.What D.When

[单选题]____ you know, David has been well lately.A.WhichB.AsC.WhatD.When

[单选题]_____you know, David has been well lately.A.WhichB.AsC.WhatD.When

[问答题]I don't know who broke the window.

[主观题]I don’t know what l should do next．（改为简单句）I don’t know_____ _____ _____next．

[单选题]-Do you know why my flight has been delayed? _ It is () bad weather conditions.A．becauseB．due toC．owing toD．because of

[单选题]（ ）I don’t know __________.A．how often he visits his grandparentsB．how soon will he come backC．how many students are there in his classD．how long is the bridge