Do you know second-hand smoke— To protect our health and memory.

There is apen on the ground. Is it Li Long’s—It LiLong’s. He went to Beijing many days ago.

He ___ the first prize in the Englishcompetition.

dn’t come to the party last Sunday. _______, shemust have made the party more exciting.

He, together with his friends，_______ coming to visit us this weekend.