★急!★2个适当形式填空

1.to exercise~
2.to tell; have left

exercises or to exercise
to tell left

exercising
to tell, left

1.They want more exercises.(他们想要更多的练习)
They want to be exercised/exercising.(他们需要锻炼)
2.to tell ; have left

exercise （1）锻炼（不可数）
（2）操（可数）（eg.eye exercises）
（3）练习