To be well-informed , we should be ______communication _____ each other about what happens to us.

Liu Xiang, who is recognized as one of the world’s best athletes, was the first person of Asian _____ to win the Olympic gold medal in the men’s 110-metre hurdles.

Has he passed the exam yet? —No,He ___ it if he had studied harder.

is no doubt that _________ a goal, one needs not only knowledge but also good personalities.

They live in a small house _______ interesting garden.