— I don’t know next. — Let’s ask our teacher for help.what to do B. what should I do C. how to do D. how I should do
—Look at the photo. The girl is my little sister. —She really ______ your mother.
These postcards are ________.
There are about _________ teachers and students in their school.
Miss Wang teaches _______ Maths.
---Let’s go and see a film. ---______________