I've come from the government with a message ____ the meeting won't be held tomorrow. A.if B.that C.whether D.which 2.The thought ____ he might fail in the exam worried him. A.when B.which C.what D.that 3.The order ____ the prisoner be set free arrived too late. A.which B.whether C.that D.what 4.The nurses are trying their best to reduce the patient's fear ____ he would die of the disease. A.that B.as C.of which D.which 5.He often asked me the question ____ the work was worth doing. A.whether B.where C.that D.when