单项选择题
Difficulties and hardships have ______ the best qualities of the young scientist.
单项选择题 Susan has ______ the elbows of her son’s jacket with leather patches to make it more durable.
单项选择题 The team played hard because the championship of the state was ______.
单项选择题 To our ______, Geoffrey’s illness proved not to be as serious as we had feared.