1. What are you (do ) doing now ?- I ( listen ) am listening to music.

( thì HTTD, dấu hiệu: now )

2. My mom always (go) goes to work early.

( thì HTĐ, dấu hiệu: always )

3. Do You often eat (eat ) vegetables for your breakfast ?

( thì HTĐ, dấu hiệu: often )

4. Are there (be) 14 classrooms in your school ?

( 14 classrooms số nhiều=> dùng are )

5. They don't play (not play ) in the evenings.

( thì HTĐ, dấu hiệu: in every evenings )

6. She likes reading(read) but she isn't reading (not read) now.

( sau like+ V_ing(có trường hợp dùng to V ), thì HTTD, dấu hiệu: now )