The expert says that nowadays there are too many problems linked to poor diet and a ________of exercise.
#12362
A
limit
B
lack
C
need
D
demand
推荐题目
 In ____, he began to learn Russian, when he was in ______. 
#12067
A
1970; the 50’s
B
the 1970; his 50s
C
the 1970s; his fifties
D
1970s; his fifties
There is a new problem involved in the popularity of private cars ________ road conditions need ________.
#11502
A
that;to be improved
B
which; to be improved
C
where;improving
D
when;improving