— 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
Young trees should ________ every day.
#45076
A
water
B
watered
C
be watering
D
be watered
The decision about the price ______ in a few days. So they have to wait.
#44634
A
is made
B
was made
C
is being made
D
will be made
—What a nice classroom! —It _____ every day.
#44598
A
is cleaning
B
has cleaned
C
must clean
D
is cleaned