\(\frac{150}{50}=\frac{3}{1}=3\)
Bấm máy đi em
câu trả lời của Trần Gia Đạo và dang uyen nhi la sai
cảm ơn
Bài 1:Change into passive form.
My friend helps me.............................................................................................................................................
I saw him on the street yesterday.............................................................................................................................................
We often take Mary around the city this weekend.............................................................................................................................................
My brother always sends a letter to my family every month.............................................................................................................................................
My father planted this tree last year.............................................................................................................................................
We do a lot of work everyday.............................................................................................................................................
Mary will send me a postcard from her country............................................................................................................................................
John finishes his exercises before going to bed............................................................................................................................................
They can do this work.................................. ................................. ................................. ................................. ......
We are going to plant this tree.............................................................................................................................................
11.The postman delivered the letters.
..........................................................................................
12. Did you write these letters ?
..........................................................................................
13.Has he done the work yet ?
..........................................................................................
14.They will ask you several questions.
............................................................................................
15.Someone is showing her how to do it.
.............................................................................................
16.My father gave me a new watch on my birthday.
..............................................................................................
17. Mr Brown teaches us English……………………………………………………….
18. The brave firefighter rescued him out of the fire.
→ .........................................................................................................................................
19. The earthquake has destroyed a big number of buildings in the city.
→ .........................................................................................................................................
20. Why didn’t they send an ambulance to US?
→ .........................................................................................................................................
21. People donated a lot of clothes, food and drinks to support the victims of the flood.
→ .........................................................................................................................................
22. Someone took him to the hospital for an immediate surgery.
→ .........................................................................................................................................
Bài 2:
Fill in the blank with the correct form of the given word.
1. The …………….. of the city after the devastating earthquake is being carried. 2. Visitors are allowed to get close to this volcano because it is…………… 3. Ten years ago, more than 10 thousand people of this area suffered from a frightening volcano …………….. 4. After the flood, many people were made …………….. 5. We should offer our ……………..hands to aid the victims of natural disasters. |
construct
act
erupt
home help |
Một xe ô tô có khối lượng 2 tấn chuyển động đều trong 30 km đầu với vận tốc 12m/s ; 90 phút sau xe đi được 45 km.
a.Giai đoạn nào xe chuyển động nhanh hơn? Tính vận tốc trung bình của xe trên cả quãng đường
b. Tính lực kéo của động cơ, biết lực ma sát tác dụng lên xe bằng \(\frac{1}{2}\)trọng lượng của xe.
c. Biểu diễn trọng lực tác dụng lên xe?