1.In some states of America,children must stay in school until they are sixteen.
In some states of America,children_____ _____school until they are sixteen.
2.Mary works very hard at schllo.Her teacher often praises her.
Mary is often praised _____her hard _______.
3.The recitation was kind of boring and I liked the cross talk better.
The recitation was _____ ______boring and I preferred the cross talk.