Food safety is important. Rules _____ to
题型:选择题
问题:
Food safety is important. Rules _____ to stop people from food pollution.
A.must make
B.must be made
C.mustn’t make
D.mustn’t be made
Food safety is important. Rules _____ to stop people from food pollution.
A.must make
B.must be made
C.mustn’t make
D.mustn’t be made