I failed again，but my parents encouraged me and told me that failure________the mother of success.

________ the fire breaks out，he is the first to arrive at the scene.

Since you are in trouble, why not ______our offer of help

Is that Mr. Green—No, Mr. Green is an ___________ man. Butthis man is only about _________.

_____ with so much trouble, we failed to complete the task on time.