根据句意，选择所给词语填空，每次只能用一次。
will, should, that, if, when
1. He said ________ she could come for more help after school.
2. I want to be a professional soccer player, so I ________ practice a lot now.
3. ________ there be much time between the two baseball games?
4. Alan was doing homework ________ I arrived.
5. ______ it is fine tomorrow, we’ll go the Great Wall.
1. that 2. should 3. Will 4. when 5. if