Complete the sentences with the correct tense of the verbs

Complete the sentences with the correct tense of the verbs.
 1. What ..............she ..............(do) now ?
       -She...............( cook ) dinner.
 2. Na always...............( go ) to work early.
 3. ............ the students often ...........(listen )to music at breaktime ?
 4. There .............( be) 20 classrooms in my school .