Hãy cho biết, mạng điện trong nhà thường có mấy loại bảng điện? Nêu nhiệm vụ của từng loại?

Khi lắp mạch điện đèn ống huỳnh quang, yêu cầu mối nối là:

A. An toàn điện

B. Chắc

C. Đẹp

D. Cả 3 đáp án trên

A. (1), (2) và (6)

B. (2), (6) và (7)

C. (3), (4) và (5)

D. (3), (5) và (7)

I _______ the guard the time of the train's departure.

A. said

B. told

C. ordered

D. asked

He thinks elephants are………..animals.

A. fascinated

B. fascinating

C. fascinates

D. fascinate

hobby        because         might        ending       culture     when       taughtimprove      mysel      fwrites

My name is Sara. My favourite (1) _________ is reading. I enjoy reading a book when I am free. I started to do it (2)________I was four years old. The first time I did it, I felt interested. So I kept reading. The teachers (3)_________ me to read the difficult words. I was happy when I read a story with a happy (4) _________. I was thrilled when I read a detective story. I enjoy reading (5) _______ I like to explore the imaginative world of my favourite author, J.K. Rowling who (6) ___________ “ Harry Potter” . There are a lot of advantages of reading. Reading can make me relaxed and calm. I can also learn new vocabulary items. Then I can further (7) __________my English. Moreover, it can give me an unlimited imagination, so I can write books in the future. I can learn the different (8) _______ and customs of other countries in the world too. I read at least one hour every day. I read books by (9) ______. I usually read it at home. I wish I could read different kinds of books because it (10) ______ be very challenging.

Question 7

III. Rewrite these sentences.

Mr. Hai usually has stomach problems. He eats dinner very close to the bedtime. (so)

-> ________________________________________

Cho dãy số u n  với u 1 = 10 u n + 1 = 1 5 u n + 3 , ∀ n ∈ N * . Tính  l i m u n

A.  l i m u n = 13 4

B.  l i m u n = 3

C.  l i m u n = 15 4

D.  l i m u n = 2

There was a mistake, ___________________?

Tìm nguyên hàm F(x) của hàm số  f x = x 4 + x 2 + 1 x 2 + x + 1

A.  F x = x 3 3 - x 2 2 + x + C

B.  F x = x 3 3 + x 2 2 + x + C

C.  F x = x 3 3 + x 2 2 - x + C

D.  F x = - x 3 3 + x 2 2 - x + C