题目内容

四环素类的不良反应可以对骨及牙齿的影响

A. 对
B. 错

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What is the plural noun for more than one tooth?

A. tooths
B. toothes
C. teeth
D. teeths

Which word has an irregular plural form?

A. child
B. foot
C. goose
D. all of the above

We have one sheep but what do we say if there are more than one?

A. sheep
B. sheeps
C. sheeplings
D. sheepies

Which one of these is a correct irregular plural noun?

A. childrens
B. babys
C. persons
D. none of the above