I want him to be my assistant；我想让他当我的助手（want）
The teacher raised his voice to make us hear it；老师提高声音尽量让我们听见（make）
this Is Mary let the cat out of the bag；是mary泄露了秘密（用强调句式）
The weather stay hot this week；这个星期天气持续高温（stay,hot）
The teacher always give us too far homework；老师总给我们布置过多的作业（far,give）
望采纳!第三个句子如果用give away，secret怎么写？最后的强调句没说啊！It is Mary give away the secret，什么强调句？