Boys and girls, please stand in a (直的) line.
Bob and Jim have been good friends (自从) they joined the same tennis team.
The singer is good at playing the (吉他) and making wonderful music.
Elephants have good memories. They never (忘记) the places with food and water.
Today we begin to learn the (第八) lesson. It is about delicious food.
There is something wrong with his teeth. He should go to the (牙医).