Lucy is asking for permission to play the guitar at Pete’s home.

 Lucy: “Is it all right if I play the guitar in here while you’re studying?”

 Pete: “_________________”

A. Oh, I wish you wouldn’t.

B. Well, I’d rather not.

C. Well, actually, I’d prefer it if you didn’t.

D. Well, if only you didn’t.

______hard, you will get good results in the coming examination.

A. Should you work

B. unless you work

C. if you will work

D. if work

Cần phải làm gì để sử dụng tốt đồ dùng điện gia đình?

* Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions.

President Andrew Jackson had an official cabinet, but him preferred the advice of his informal advisors, the Kitchen Cabinet.

A. an official

B. him

C. preferred

D. his

Khi nói về các nhân tố bên trong ảnh hưởng đến sinh trường và phát triển của động vật, có bao nhiêu phát biểu sau đây đúng?

I. Ở người, thể vàng tiết ra hoocmôn sinh dục prôgestêrôn.

II. Ở nữ giới, hoocmôn LH có tác dụng làm trúng chín, rụng và tạo thể vàng

III. Ở nữ giới, hoocmôn FSH có vai trò kích thích nang trứng phát triển và tiết ra hoocmôn ơstrôgen.

IV. Ở nam giới, hoocmôn testostêrôn và FSH trực tiếp kích thích quá trình sinh tinh trùng

A. 1

B. 2

C. 3

D. 4

Cho các phân tử: N H 4 N O 3 ,   C a C l 2 ,   H N O 3 ,   F e ( N O ₃ ) 2 ,   C H 3 C O O H ,   H 3 P O 4 ,   C H 3 N H 3 C l ,   C H 3 C H O . Có bao nhiêu chất chỉ chứa liên kết cộng hóa trị

A. 3

B. 5

C. 6

D. 4

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 30 to 34.

Perhaps it was his own lack of adequate schooling that inspired Horace Mann to work so hard for the important reforms in education that he accomplished. While he was still a boy, his father and older brother died, and he became responsible for supporting his family. Like most of the children in his town, he attended school only two or three months a year. Later, with the help of several teachers, he was able to study law and became a member of the Massachusetts bar, but he never forgot those early struggles.

While serving in Massachusetts legislature, he signed a historic education bill that set up a state board of education. Without regret, he gave up his successful legal practice and political career to become the first secretary of the board. There he exercised an enormous influence during the critical period of reconstruction that brought into existence the American graded elementary school as substitute for the older distinct school system. Under his leadership, the curriculum was restructured, the school year was increased to a minimum of six months, and mandatory schooling was extended to age sixteen. Other important reforms included the establishment of state normal schools for teacher training, institutes for in-service teacher education, and lyceums for adult education. He was also instrument in improving salaries for teachers and creating school libraries.

Mann’s ideas about school reform were developed and distributed in twelve annual reports to the state of Massachusetts that he wrote during his tenure as secretary of education. Considered quite radical at the time, the Massachusetts reforms later served as a model for the nation. Mann was recognized as the farther of public education.

Which of the following describes Horace Mann’s early life? 

A. He attended school six months a year. 

B. He had to study alone, without help. 

C. He supported his family after his father died.      

D. He was an only child. 

Yếu tố không thuận lợi đối với sản xuất nông nghiệp ở nước ta là

A. khả năng xen canh, tăng vụ lớn

B. tính mùa vụ

C. sản phẩm nông nghiệp đa dạng

D. sự phân hóa về điều kiện sinh thái nông nghiệp

Số phức z thỏa mãn z - 1 = 5 ,   1 z + 1 z ¯ = 5 17 và z có phần ảo dương. Tìm tổng phần thực và phần ảo của z.

Gọi z 1 , z 2 là 2 nghiệm của phương trình 2 z 2 + z + 1 = 0 . Tính giá trị biểu thức A = z 1 2 + z 2 2