----- Nội dung dịch tự động từ ảnh ----- 14. How often. 15. They often (visit) their parents on Saturday. 16. She (study) in this class for eight months up to now. 17. He (not be) at home now. 18. Hanh (not read) a book at the moment. 19. Our teacher usually (give) us many exercises. 20. He often (catch) a train to work.
