They made up their ____(决心)to study hard.
要用复数吗，可以用吗
參考答案:make up one's mind/decision/determination to do sth. 都可以
但是如果是they，则determination一定要用复数，但前两者不能用
如You always make up your determinations all day long.你整天就知道下决心（却不付诸行动）。
They made up their ____(决心)to study hard.
要用复数吗，可以用吗
參考答案:make up one's mind/decision/determination to do sth. 都可以
但是如果是they，则determination一定要用复数，但前两者不能用
如You always make up your determinations all day long.你整天就知道下决心（却不付诸行动）。