— Food problem is becoming a big one in China! —I think the food ________ before going to shops or supermarkets. 
#44566
A
is checked
B
is checking
C
should be checked
D
should check
推荐题目
The room _______ every day. You can live it now.
#44779
A
cleans
B
is cleaning
C
is cleaned
D
has cleaned
The old should _____ well.
#44832
A
be take care of
B
look after
C
be looked after
D
be taking car of
Yuan Longping, a great person in China, _____as “father of hybrid rice”
#44978
A
is regarded
B
has regarded
C
is regarding
D
regards