8. Exercise_regularly_to always keep your body fit and your mind happy.
A regular
B. regularly
C. irregular
D. irregularly

Câu C in đậm đấy bạn

\(n_{Fe}=\dfrac{m_{Fe}}{M_{Fe}}=\dfrac{5,6}{56}=0,1\left(mol\right)\) 
PTHH: \(Fe+H_2SO_4->FeSO_4+H_2\uparrow\) 
Tỉ lệ:    1          1                  1            1
Mol:   0,1       0,1               0,1          0,1
Số mol H₂SO₄ cần dùng để phản ứng: 0,1(B)

2. Some can cause...diseases such as tuberculosis and food poisoning.
A. infect
B. infection
C. infectious
D. infectiously

Question 1: D. photography (âm 2) các từ còn lại nhấn âm 3
Question 2: C. July (âm 2) các từ còn lại nhấn âm nhất

1. “We will live much longer in the future.” said the scientist.

The scientist said that __they would live much longer in the future___.

2. “Our school is going to have a new laboratory here,” said our teacher.

Our teacher said that _our school was going to have a new laboratory there_.

3. “They are developing technology to monitor students better,” my dad said.

My dad said that __they were developing technology to monitor students better_.

4. “There are no classes tomorrow because our teacher is ill,” Tom said.

Tom said that __there were no classes the next day because their teacher was ill__.

5. “We want some students to join the science club next semester,” the teacher said.

The teacher said that _he/she wanted some students to join the science club the following semester__.

1. “I'm having a science test tomorrow.” Mary said.

Mary said she was having a science test __the next time_.

2. “The group is working on their project now,’ Tom said.

Tom said the group was working on their project __then__.

3. “Mai is reading about Thomas Edison today,” the teacher said.

The teacher said that Mai was reading about Thomas Edison __that day__.

4. “They will invent a smart cooker this year,” my mum said.

My mum said that they would invent a smart cooker _that year__.

5. “My teacher will park her car here,” said Mi.

Mi said her teacher would park her car __there__.

1. “I am a member of the IT club.”

Minh said that he __was_ a member of the IT club.

2. “Mai will take an online course to improve her speaking.”

Nam said Mai _would take_ an online course to improve her speaking.

3. “I am talking to Phong on the phone.”

Tom said he __was talking_ to Phong on the phone.

4. “They are going to send me an email.”

He said they __were going_ to send him an email.

5. “I don't have an iPod to listen to music.”

She said that she __didn't have__ an iPod to listen to music.

1. Marie Curie and Pierre Curie ___discovered_ radium and polonium.

2. Thomas Edison _invented___ the light bulb in 1880.

3. Sarah Gilbert is the creator of a vaccine. She __created__ it in 2020.

4. Scientists have carried out many __experiments__ to find a cure for cancer.

5. Scan your finger on this __fingerprint scanner__ to check attendance, please.

1A: invent a device
2A: discover a chemical element
3B: create a medicine
4B: develop a technology