英文點講 / 寫？

1.half of the cake

2. take the job of absent teacher

1) 半件蛋糕：
Half a piece of cake

1) Half of the piece of cake
2) substitution to teach (replace to teach when the original teacher is sick)

half of the cake
A generation of hall (is not serves as a substitute teacher, but had teacher to get sick, wanted a generation of hall)

1)Half of cake
2)Serves as a substitute teacher