No matter how healthy you ________ be, you need to consult a doctor from time to time.

Haven’t you enough common ________ to know that it is unwise to go outside in such a hazy (雾霾的) day? You may get lost.

Distance learning is being _____ in several countries to help children in remote rural schools obtain higher education.

He was so excited and insisted that what he had done completely______ their demand（要求）.

 Tom is clever at numbers and I think he will ________ an excellent accountant.