In the UK and the USA people often give flowers and cakes as birthday presents. They ________ open their presents at once.
---Excuse me,sir.This is a non-smoking room. ---Oh,sorry.I the sign.
Every day, too much water in our school.We should save it.
---Where is Mr. Wang? ---He together with his students Cunjin Park.
---Mr Zhang,must I hand in my report today? ---No.you .
strong the wind is! I'm afraid we can’t go to the sea today.