【简答题】All employees are given a yearly ______,which decides whether or not their contracts will be renewed for the coming year. 所有的雇员每年都会被评估,根据评估结果来决定是否续签下一年的合同。
【单选题】Questions and exercises are given by the computer, which decides ______ to move the students ahead, review an easier level, ____ give more work on the same level.