—Jane, see, what did I find?—Oh, my lost keys! ____.
Her ambition is _____ part of the national team for the next Paralympic Games.
We have the right to ________ our traditions, our heritage and our languages.
As we know, too much ________ to Xrays can cause skin burns, cancer or other damage to the body.
The lesson Mr Li gave just now was too difficult for the class to ________.
The scientists recommend that studies ________ to find out what side effects the medicine might cause.