he studies hardest of the three of us =he ------ ------- -------- -------- of the three of ushe studies hardest of the three of us=he ------- -------- ---------- ---------- of the three of us

问题描述:

he studies hardest of the three of us =he ------ ------- -------- -------- of the three of us
he studies hardest of the three of us
=he ------- -------- ---------- ---------- of the three of us

he studies hardest of the three of us
=he 【is the most hard-working】of the three of us

is the hardest student