Mel looks the younger of the two boys.说明理由.————其实这道题原来是道选择题：Mel looks _________of the two boys.A.older B.liker C.the best \D/.the younger

Mel looks the younger of the two boys.说明理由.————其实这道题原来是道选择题：Mel looks _________of the two boys.A.older B.liker C.the best \D/.the younger
Mel looks the younger of the two boys.
说明理由.
————
其实这道题原来是道选择题：
Mel looks _________of the two boys.
A.older B.liker C.the best \D/.the younger

Mel looks the younger of the two boys.说明理由.————其实这道题原来是道选择题：Mel looks _________of the two boys.A.older B.liker C.the best \D/.the younger
是比较级 又是2个中间选 当然正确了

在Two Boys中间选择就应该用比较级，所以排除C，比较级前面要加冠词The，排除A和B，最后选D！