根据提示填空（每空一词）
1.They can answer the question today.(根据句子推理）
But____ ____ ____ the question yesterday.
2.The math tests were too easy for me.（用enough写同义句）
The math test____ ____ ____for____.
3.These apples weren't too hard for them.（用enough写同义句）
These apples were____　____for____.
4.Perhaps I've got a low mark.(仿写同义句）
Maybe Gary____ not____a____ ____.
5.The black grapes are sweet enough for us.(用too写同义句)
The black ones____not____ ____for us.