: Sử dụng thì hiện tại đơn và hiện tại tiếp diễn
16. I can't talk on the phone now. I (drive) …………………home.
17. Where are the children? They (lie)……………….. on the beach over there.
18. You never (listen)…………………. to a word I say! You always (listen)………………. to that mp3 player!
19. He (not understand)………………………………… what you (talk)……………. about. He's foreign.
20. How much …………your suitcase (weigh)…………..? It (look) …………………really heavy.