All the students had gone out.There was in the classroom.

Mike the book for two weeks. He will return it next week.

Nowadays the roles of husband and wife are not asdefined as before, especially when both partners work and earn money for the family

busy schoolwork, the children also have totake arts, music andsports classes in their free time.— I wonder what they will become.

. If you think that the illness might be serious, you should not ______ going to the doctor.