Trees and flowers ________every year to make our country more beautiful.

What a nice model ship!– Thank you. It me three days to make it.

Do you know how to use the computer?—Sorry, I don’t. Why ______ ask the teacher ______ help? [ ]

Kate wants to know if youa picnic next Sunday.–Yes. But if it, we’ll visit the museum instead.

I still remember my first teacher________ we haven’t seen each other for a long time.