1,23A= 1230 MA
45mA= 0,045 A
10,101A= 10101 mA
101,01mA= 1,0101 A

Câu đầu tiên vì ở QKĐ nên bạn phải chuyển "has" → "had"

B. Rewrite the sentences with the same meaning

1. There were some pencils on the table last night.

The table  had some pencils last night.

2. It took me 4 hours to drive to Ho Chi Minh city.

I spent 4 hours driving to Ho Chi Minh City.

3. Tom bought Loan a new bike yesterday.

Tom bought a new bike for Loan yesterday.

4. We went to school on foot.

We walked to school.

5. They spent two days flying to the USA.

It took them two days to fly to the USA.

V. READ.

A. Read the passage then choose the correct answers.

Last year Lan spent her summer vacation in Nha Trang. It was the (1) ____________ time she went there. She stayed (2) ____________ a friend’s house near the beach. Her friend took her to see lots of (3) ____________ places in Nha Trang such as Cham temples, Hon Chong, Tri Nguyen aquarium. Lan bought a lot of gifts (4)  ____________ her friends. Lan liked the beach (5) ____________ . She took a lot of photos of it and went to the beach every morning. She (6) ____________ very happy and healthy after the trip.

2. a. first                     b. two                               c. the first                d. X

3. a. in                         b. on                                 c. at                           d. with

4. a. interested             b. interesting                  c. bored                    d. boring

5. a. of                         b. from                             c. for                         d. to

6. a. good                    b. better                            c. the best                  d. best

7. a. feel                      b. fells                               c. fall                         d. felt

B. Rewrite the sentences with the same meaning

1. There were some pencils on the table last night.

The table  had some pencils last night.

2. It took me 4 hours to drive to Ho Chi Minh city.

I spent 4 hours driving to Ho Chi Minh City.

3. Tom bought Loan a new bike yesterday.

Tom bought a new bike for Loan yesterday.

4. We went to school on foot.

We walked to school.

5. They spent two days flying to the USA.

It took them two days to fly to the USA.

V. READ.

A. Read the passage then choose the correct answers.

Last year Lan spent her summer vacation in Nha Trang. It was the (1) ____________ time she went there. She stayed (2) ____________ a friend’s house near the beach. Her friend took her to see lots of (3) ____________ places in Nha Trang such as Cham temples, Hon Chong, Tri Nguyen aquarium. Lan bought a lot of gifts (4)  ____________ her friends. Lan liked the beach (5) ____________ . She took a lot of photos of it and went to the beach every morning. She (6) ____________ very happy and healthy after the trip.

2. a. first                     b. two                               c. the first                d. X

3. a. in                         b. on                                 c. at                           d. with

4. a. interested             b. interesting                  c. bored                    d. boring

5. a. of                         b. from                             c. for                         d. to

6. a. good                    b. better                            c. the best                  d. best

7. a. feel                      b. fells                               c. fall                         d. felt

Question 3: Write the correct possesive pronouns. (1m).

1. This is Hoa and Nga’s computer. → This computer is theirs.
2. My bike is black. → The black bike is  mine.
3. These are his shoes. → These shoes are  his.
4. This is Veronica’s cat. → The cat is hers.
5. That is our picture. → The picture is ours.

Question 4: Give the correct tense of verbs in brackets. (1m).

1. You’ll recognise her when you see her. She will be wearing (wear) a green hat. 
2. I’ll be on holiday this time next week. I will be lying (lie) on a beautiful beach.
3. At 10 o’clock tomorrow he will be working (work) in his office. 

Why was the festival held?

Bài 1: 

a. Trời // mưa to // khiến con đường ngập nước.

Có 2 cụm C - V là: 

+) Trời mưa to (CN: Trời, VN: mưa to) ➙ Làm thành phần CN.

+) khiến con đường ngập nước. (CN: con đường, VN: ngập nước) ➙ Làm phụ ngữ trong CĐT.

b. Bức tường này // màu sơn // rất đẹp.

Cụm C - V là: màu sơn rất đẹp. (CN: màu sơn, VN: rất đẹp)

➙ Làm thành phần VN.

Lớp cá \(\rightarrow\) Lớp lưỡng cư \(\rightarrow\) Lớp bò sát \(\rightarrow\) Lớp chim \(\rightarrow\) Lớp thú

1. He helps me with my coin COLLECTION .  (COLLECT)

2. The vacation was WONDERFUL . (WONDER)

3. My brother wants to go RUNNING , so he buy a good pair of shoes. (RUN)

4. They go to the CLOTHING store to buy clothes. (CLOTH)

5. The traffic here is very DANGEROUS for our son.  (DANGER)

6. Were you TIRED after the trip?  (TIRE)

7. She came back home after a lone hard WORKING day. (WORK)

8. People who buy something from a shop called CUSTOMER (CUSTOM)

a)

 \(\left(x-1\right)+\left(x-2\right)+\left(x-3\right)+...+\left(x-99\right)+\left(x-100\right)\\ =100.x-\left(1+2+3+...+99+100\right)\\ =100.x-5050\)

Cho \(100.x-5050=0\), ta có: 

\(100.x-5050=0\\ \Rightarrow100.x=5050\\ \Rightarrow x=\dfrac{101}{2}\)

Vậy \(x=\dfrac{101}{2}\) là nghiệm của đa thức trên.

b)

Cho \(3x^2-15x=0\) , ta có:

\(3x^2-15x=0\\ \Rightarrow x\left(3x-15\right)=0\)

TH1: \(x=0\)

TH2: 

\(3x-15=0\\ \Rightarrow3x=15\\ \Rightarrow x=5\)

Vậy tập nghiệm của đa thức trên là: \(\left\{0;5\right\}\)

Mình đã trình bày rõ ràng theo cách cô mình dạy rồi nên bạn yên tâm nhé!