The doctors said that there was ___ wrong with Jane’s legs, but they could do ___ to help her.

Newton was sitting under an apple tree ______ an apple fell onto his head.

People say your little brother has been admitted into QinghuaUniversity.—Yes. Never ________ he could achieve so much success.

Tom needs some help ______ his homework. Can you help ______? [ ]

Would you like to eat up all the food on that plate? ——Sure,but that is not _______. I have already eaten all my food up.