He hasn’t decided___ he will give us the talk or not .() A: whether B: weather C: How D: that

When and where to build the new factory _________yet． A: is not decided B: are not decided C: has not decided D: have not decided

It is essential that everything（）in advance. A: should decide B: be decided C: decided D: will be decided

When and where to build the new factory _____ yet. A: is not decided B: are not decided C: has not decided

When and where to go for a summer holiday （） yet. A: has not decided B: have not decided C: has not been decided D: have not been decided

When Jason's computer broke down, his parents decided___ A: not to have it repaired. B: to buy him a new one. C: not to replace it with a new one.

When and where to hold the meeting ________ yet. A: are decided B: decides C: have not decided D: has not been decided

We （）to move but are still considering where to go. A: are deciding B: decided C: have decided D: had decided

The city government is planning to build a new factory to deal with rubbish, but when and where to start ________. A: hasn't been decided B: haven't decided C: isn't being decided D: aren't decided

Professor Wang is going to give us a lecture on the history of American literature, but when and where ____ yet. A: aren't decided B: hasn't been decided C: haven't decided D: haven't been decided