9^a=729

9^a=9^3

suy ra : a=3

tick nhé

Khi có một lực tác dụng lên vật thì vận tốc của vật sẽ như thế nào?

A. Không thay đổi

B. Chỉ có thể tăng

C. Chỉ có thể giảm

D. Thay đổi tăng hoặc giảm.

Choose the most suitable words or phrases to fill in the blanks.

The boy waved his hands to his mother, who was standing at the school gate to ______ her attention.

A. Attract

B. pull

C. follow

D. tempt

Tick True (T) or False (F)

My sister, Lien, is a teacher. She is very tall with an oval face. She has long brown hair and round eyes. She is very beautiful with full lips and a small nose. She likes vegetables and she eats a lot of them. She doesn’t eat much meat or sugar. She never smokes or drinks wine. In her free time, she usually goes out for a walk with her friends.

Question: She usually stays at home in her free time.

A. True

B. False

write a paragraph about our customs AND traditions