doing exercise does good to our health
xiaowang expresses his thoughts by using english
the teacher advises us to read books every morning
it was what he did that made me angry
we cannot only care about our profits and goodness
mom suffered from a lot of pains in order to make us happy
you should had finished your homework yestoday,but you didn't
he isn't good at communicating with other people
we should have our watch fixed
we can communicate with each other by internet
i live alone but i don't feel lonely
we all worry about his safety
tihs is my first trip to beijing
i study hard to catch on with other students