Chia động từ trong ngoặc ở hiện tại đơn hoặc hiện tại tiếp diễn: 1) They usually (take)... a bus to work, but they (not take)... a bus to work now. They (walk)... to work today 2) Mai often (watch)... television in the evening. At this moment, she (watch)... a flim on TV 3) He (not work)... now. He never (work)... on Thursday 4) The doorbell (ring)... again now. It (ring)... very often 5) The train (stop)... ai the corner now. It always (stop)... there 6) Sam and Peter usually (sit)... in the back row, but I wonder why they (sit)... at the front row today 7) My sister never (go)... to schooi late 8) They often (have)... lunch in the factory canteen. Today, they (have)... luch at a restaurant 9) She (speak)... French now, but she usually (speak)... Japanese. She always (want)... to practise Japanese 10) Ai present, he (not work)... in an office. He (not like)... to work there Help me!!  

Để chia động từ trong ngoặc ở hiện tại đơn hoặc hiện tại tiếp diễn, ta cần chú ý các quy tắc sau:
- Hiện tại đơn: động từ (V) + s/es đối với đại từ ngôi thứ ba số ít. Ví dụ: take - takes
- Hiện tại tiếp diễn: đang + V-ing. Ví dụ: watch - watching

Câu trả lời cho câu hỏi trên:
1) They usually take a bus to work, but they are not taking a bus to work now. They are walking to work today.
2) Mai often watches television in the evening. At this moment, she is watching a film on TV.
3) He is not working now. He never works on Thursday.
4) The doorbell is ringing again now. It rings very often.
5) The train is stopping at the corner now. It always stops there.
6) Sam and Peter usually sit in the back row, but I wonder why they are sitting at the front row today.
7) My sister never goes to school late.
8) They often have lunch in the factory canteen. Today, they are having lunch at a restaurant.
9) She is speaking French now, but she usually speaks Japanese. She always wants to practise Japanese.
10) At present, he is not working in an office. He does not like to work there.

5) The train is stopping at the corner now. It always stops there.

4) The doorbell is ringing again now. It rings very often.

3) He is not working now. He never works on Thursday.

2) Mai often watches television in the evening. At this moment, she is watching a film on TV.