Doctors say that exercise is important for health, but it must be        exercise.
#19476
A
frequent
B
normal
C
regular
D
usual
推荐题目
John is the tallest boy in the class, _______ according to himself.
#19275
A
six feet as tall as
B
as tall as six feet
C
as six feet tall as
D
as tall six feet as
. There were no tickets _____ for Friday’s performance.
#19935
A
preferable
B
possible
C
considerable
D
available