There is some evidence _____ a small amount of alcohol is good for you.

  A. which             B. what             C. whether         D. that

In recent years travel companies have succeeded in selling us the idea _____ the further we go, the better our holiday will be.

A. of which                  B. where                      C. which                      D. that

At present, when purchasing a house, we have to take the fact into account _____ we are still faced with the global financial crisis.

A. whether                            B. what                        C. that                          D. which

Yesterday evening the board had a discussion regarding ______ they should set up more scholarships to meet the increasing demands.

     A. what           B. whether       C. that              D. who

There is little doubt _____ you will be able to judge truth and error if you have confidence in yourself.

A. that                   B. who          C. when              D. if