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 tree is so tall. —Yes. It ______nearly 20 metres. 
#11671
A
measures
B
is measured
C
measure
D
to be measured
Rather than ________on a crowded bus, he always prefers _______a bicycle .
#13462
A
ride; ride
B
riding; ride
C
ride; to ride
D
to ride; riding
 The meeting was put off because we ________ a meeting without John.
#12900
A
objected having
B
were objected to having
C
objected to have
D
objected to having