The doctors say that good diet, exercise and fresh air, all of which _____ the health and long life. 
#80948
A
lead to
B
refer to
C
stick to
D
contribute to
推荐题目
My sister ______ the league last month and she has decided to ______ the activities to help the aged in town next week.
#67171
A
joined; take part in
B
joined in; join
C
attended; join
D
took part in; join in
 I _______ Beijing in a few days. Do you know when the earliest plane ________?
#64607
A
leaves; takes off
B
is leaving off; is taking off
C
am leaving for; takes off
D
leave; is taking off