The old scientist took up walking as a regular form of exercise, which, of course, is of great        to his heath.
#10544
A
benefit
B
favor
C
sense
D
relationship
推荐题目
The ______ of air and water makes it impossible to live on the moon.
#13795
A
presence
B
absence
C
dependence
D
evidence
He dived in the water and _____ to search for his girlfriend’s lost gold ring.
#11208
A
caught his breath
B
held his breath
C
lost his breath
D
took breath