Grammar ReviewExample:The bookstore(was/were)closed.1.(There's/There are)a concert tonight.2.Let's sing a song (for/at)the teacher.3.(Do/Did)you finish your homework yesterday?
文摘Grammar ReviewExample:The bookstore(was/were)closed.1.(There's/There are)a concert tonight.2.Let's sing a song (for/at)the teacher.3.(Do/Did)you finish your homework yesterday?
