update,

task1/utils/resetResult.js

@@ -0,0 +1,16 @@
+function resetResult(row) {
+  var output = { state: "init", debug: {}, error: "" };
+  try {
+    var sheet = SpreadsheetApp.openById(SHEET_ID).getSheetByName(
+      SHEET_STUDENT_PROGRESS
+    );
+
+    var result_cell = getCell(sheet, row, COL_STUDENT_PROGRESS_RESULT);
+    return writeCell(result_cell, null);
+  } catch (error) {
+    console.log("resetResult error");
+    output = { ...output, error };
+    console.log(output);
+    console.log(error);
+  }
+}