He is a _____ boy, so he can’t go to the park by himself.
| A．six-year-old | B．six year old |
| C．six-years-old | D．six years old |
相关试题
He is a _____ boy, so he can’t go to the park by himself.
| A．six-year-old | B．six year old |
| C．six-years-old | D．six years old |
B. 
C.
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