The test file at https://github.com/mozilla/pdf.js/blob/master/test/pdfs/annotation-choice-widget.pdf contains listboxes, which are not rendered correctly when printed right now. These kinds of fields are made by https://github.com/mozilla/pdf.js/blob/master/src/display/annotation_layer.js#L672-L678.

/cc @calixteman 
this._send({ id: this._id, focus: true });
  }
  setItems(oArray) {
    if (!this._isChoice) {
      throw new Error("Not a choice widget");
    }
    this._items.length = 0;
    for (const element of oArray) {
      let displayValue, exportValue;
      if (Array.isArray(element)) {
        displayValue = element[0]?.toString() || "";
        exportValue = element[1]?.toString() || "";
      } else {
        displayValue = exportValue = element?.toString() || "";
      }
      this._items.push({ displayValue, exportValue });
    }
    this._currentValueIndices = 0;
    this._send({ id: this._id, items: this._items });
  }
  setLock() {}
  signatureGetModifications() {}