把下列句子改为同义句.1、The writer got over fifty letters last month.Th

把下列句子改为同义句.
1、The writer got over fifty letters last month.
The writer got ____ _____ fifty letters last month.
2、Do you want to travel around the world?
Do you want to travel ___ ___ ____ _____
3、Mary is thinner than the other two.
Mary is ____ _____ ____ the three.
4、We are going to take care of your pet birds.
We are going to ____ ____ your pet birds.
5、My favorite subject is chemistry.
I _____ chemistry ____ .
6、They enjoyed themselves in the aquarium yesterday.
They ____ ____ in the aquarium yesterday.