根据汉语意思完成句子，每空一词

1．这块蛋糕是用黄油和面粉做的。  

The cake_______ ______ _______butter and flour

2．我认为他的答案不对。  

_______ ______ _______his answer is right

3．我写完作业了。你呢，杰克？  

I have finished my homework, _______ ______ ______    , Jack?

4．第二天复习你之前所学的知识，效果会更好。

________ ________ _______ ________review what you learnt thefollowing day.

5．这本书是他写的。  

This book_______ ______ ______him.

6．树被砍倒了。

Trees______ ______ _______.