The relatives of those killed in the crash got together to seek （）.

单项选择题At first everything went well with the project but recently we have had a number of （） with the machinery.

A．disturbances
B．setbacks
C．outputs
D．distortions

单项选择题Henry went through the documents again carefully for fear of （） any important data.

A．relaying
B．overlooking
C．deleting
D．revealing