On the chairs_______, who had come to Sanming looking for jobs.

Here is the knife. You can ask your mother ___the apple for you.

_____________ have you studied in this middle school? — Nearly 2 years.

Our math teacher ______ in our school for 20 years and he _____ here when he was 23 years old.

The desk _____ the teacher is _____ the classroom.[ ]