Nowadays ,corona is a dangerous disease in the world.

Why is it dangerous? Corona is also called nCov, Sars-CoV or Covid-19. A woman in India said it will be a pandemic not only in 2020 but also in the future. Perhaps, it appeared in a bat soup in a market in Vu han, China. Corona made over 3 millions people died. And it destroys human organs. Common symptoms are: fewer, dry cough, fatigue.

Các bn có thể gợi ý hoặc viết nốt phần sau giùm mk đc ko??

Cảm ơn mn ạ!!!<33

Ex1: Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage.

E-mail and chat room let children communicate (1)                       friends and family members. They can also allow children to connect with people that they have never (2)                              in person. Knowing a little about each of these communication services can help parents (3)                          children safer while online.

Through e-mail, (4)                     can easily send and recive messages. These messages may also have text, audio, and picture file attached. Signining up for an e-mail account is simple (5)               most services offer them for free. Sometimes these messages contain viruses,or other inappropriate content, so parents should warn children to be wary of e-mails from (6)              people. 

Chat rooms are online hang-out spots where anyone can talk about (7)               - cultural events, books, and other common interests. User often do not know each other in real life, so it is important that parents keep a close eye on the content of any (8)              .

1. A. to                      B. with                      C. for                         D. through

2. A. met                   B. gone                    C. asked                    D. called

3. A. save                 B. protect                 C. surround                D. keep

4. A. receivers          B. messengers         C. users                     D. partners

5. A. due to              B. because               C. because of             D. so

6. A. know                B. well-know            C. unknow                   D. unpopular 

7.A. every               B.something              C.nothing                   D. anything     

8. A. conversations             B. meetings             C. letters                  D. users