I. chuyển sang câu hỏi và phủ định.
1. Tom and Peter play football after school three times a week.
...........................................................................................?
...........................................................................................
2. He usually helps her mother with the housework.
..............................................................................................?
.......................................................................................
3. Rosy and her brother are having breakfast at the moment.
...............................................................?
...............................................................
4. We are watching a film on T.V right now.
...............................................................?
...............................................................
5. They are doing monthly test at present.
...............................................................?
...............................................................
6. Dung is running very fast now.
...............................................................?
​...............................................................

I. chuyển sang câu hỏi và phủ định.
1. Tom and Peter play football after school three times a week.
...........................................................................................?
...........................................................................................
2. He usually helps her mother with the housework.
..............................................................................................?
.......................................................................................

    Put the verbs in the blankets into the Present Continuous. (Chia động từ trong ngoặc ở thì hiên tại tiếp diễn và gạch chân dấu hiệu nhận biết)
1. They...........................(help) the teacher right now.
2. ..............she (stay).........................in a hotel at the moment?
3. We................................................(not study) science at present.
4. Look! The children ................................(play) football in the play ground.
5. Bob...........................................(watch) the news on TV with his father at the moment.
6. My parents..............................(talk) to the teacher at the moment.
7. The sun ................................(shine) today.
8. Be careful! The child (coross)...........................................the street.
9. Be quiet! My grandma (sleep).........................................
10. I...........................(look) for Jack now. Do you know where he is?

Có bao nhiêu số tự nhiên m thỏa mãn:
a) Chia hết cho 2 và 105 ≤ m ≤ 125
b) Chia hết cho 5 và 105 ≤ m ≤ 125

a) Trong dãy số 1;2;3;4;....199 có bao nhiêu số lẻ chia hết cho 9 ?
b) Trong dãy số 1;2;3;4;.....299 có bao nhiêu số chẵn chia hết cho 3 ?