1. My sister is very seriously and hard-working in her...
=> A. seriously -> serious (tobe + adj)
2. Ride a bike at the weekend is my best friend's hobby.
=> A. ride -> riding (Khi động từ làm chủ ngữ phải thêm -ing)
3. She is very cared, so she always helps her mother do the housework.
=> B. cared -> careful
4. My friend has a short brown hair and an oval face.
=> B. a (thừa; vì hair là danh từ ko đếm được nên ko dùng a)
5. Because Nga is very keen on the school's singing competition, she is taking part on it tomorrow.
=> D. on -> in (take part in...: tham gia...)
6. I have an important maths exam tomorrow afternoon, so I do a lot of maths exercises this evening.
=> C. do -> did (this evening dùng thì QKĐ)
7. We have a lot of assignments to do. Therefore, we are going to the cinema with you tonight.
=> therefore -> however
8. I have new pencil, a pencil sharpener, and a pencil case.
=> A. new pencil -> a new pencil (Thiếu mạo từ)
9. The painting competition will start at his school on the 17th of October.
=> at -> in (Dùng sai giới từ)
10. She usually plays the piano every Monday evening, but today she watch cartoons with her younger sister.
=> watch -> watches (Dùng thì HTĐ: She + V-s, es)
11. There are a table, four chairs, two pictures and a vase in the living room.
=> A. are -> is (a table là số ít)
12. There aren't a lot of posters in the wall in his bedroom.
=> C. in -> on
13. My dog has a long tail, big eyes, and a yellow fur.
=> a (thứ hai)-> bỏ đi vì fur = lông ko đếm được
14. She has a birthday party with a big birthday cake and a lot of candles at home.
=> A. has -> is having
