______ is a good form of exercise for both the old and the young.
#88215
A
Walk
B
To walk
C
Walking
D
The walk
推荐题目
__________ there was danger ahead, the girl walked on.
#93989
A
Known not
B
Not known
C
Knowing not
D
Not knowing
Every minute must be made full use of________spoken English.
#90681
A
to practise
B
practising
C
to practising
D
practice
--- What’s reported in the news?--- The earthquake yesterday is said _______ more than 5 hundred people.
#91641
A
to kill
B
that it is
C
to have killed
D
that it has killed