Nội dung của Hiệp ước Muyních là
A. các nước tham dự hội nghị quyết định cho Xuyđét được quyền tự trị.
B. Anh, Pháp sẽ không giúp Ba Lan chống lại nước Đức.
C. Anh, Pháp trao vùng Xuy – đét của Tiệp Khắc cho Đức Quốc xã và Đức cam kết chấm dứt mọi cuộc thôn tính ở Châu Âu.
D. các nước tham dự hội nghị thống nhất sẽ không tấn công Liên Xô.

Choose one sentence that has the same meaning as the root one:
We stayed in our seats. The game ended.
A. We stayed in our seats after the game ended.
B. By the time the game ended, we stayed in our seats, c. 
C. We stayed in our seats until the game ended.
D. While the game ended, we stayed in our seats.

Choose one sentence that has the same meaning as the root one:
I regret lending him money.
A. I did not lend him money.
B. I wish I had lent him money.
C. He did not borrow money from me.
D. I lent him money and I regret now.

Choose one sentence that has the same meaning as the root one:
John did well in the competition, but he didn’t win.
A. Though having done well in the competition, John didn’t win.
B. In spite John did well in the competition, he didn’t win.
C. Despite doing well in the competition, John didn’t win.
D. Although John did well in the competition, however he didn’t win.

Choose one sentence that has the same meaning as the root one:
Sophie exchanged the shoes for a different pair.
A. One of Sophie’s shoes did not fit, so she returned them both.
B. Sophie took the shoes back to the store and got some different ones.
C. Because of a problem with the heel of the shoes, Sophie returned the shoes.
D. Sophie returned the shoes and took a pair of trousers instead.

Choose one sentence that has the same meaning as the root one:
“Would you like to come to my birthday party, Sarah?” asked Frederic.
A. Frederic asked Sarah if she liked his birthday party or not.
B. Frederic invited Sarah to his birthday party.
C. Frederic asked if Sarah was able to come to his birthday party.
D. Frederic reminded Sarah of his coming birthday party.

Cho tứ diện $\displaystyle ABCD$ có trọng tâm$\displaystyle G$ . Chọn khẳng định đúng?
A. $\displaystyle A{{B}^{2}}+A{{C}^{2}}+A{{D}^{2}}+B{{C}^{2}}+B{{D}^{2}}+C{{D}^{2}}=3\left( G{{A}^{2}}+G{{B}^{2}}+G{{C}^{2}}+G{{D}^{2}} \right)$.
B. $\displaystyle A{{B}^{2}}+A{{C}^{2}}+A{{D}^{2}}+B{{C}^{2}}+B{{D}^{2}}+C{{D}^{2}}=4\left( G{{A}^{2}}+G{{B}^{2}}+G{{C}^{2}}+G{{D}^{2}} \right)$.
C. $\displaystyle A{{B}^{2}}+A{{C}^{2}}+A{{D}^{2}}+B{{C}^{2}}+B{{D}^{2}}+C{{D}^{2}}=6\left( G{{A}^{2}}+G{{B}^{2}}+G{{C}^{2}}+G{{D}^{2}} \right)$.
D. $\displaystyle A{{B}^{2}}+A{{C}^{2}}+A{{D}^{2}}+B{{C}^{2}}+B{{D}^{2}}+C{{D}^{2}}=2\left( G{{A}^{2}}+G{{B}^{2}}+G{{C}^{2}}+G{{D}^{2}} \right)$.

Choose one sentence that has the same meaning as the root one:
We should visit the Duty Free Shop. Our flight will be called.
A. Before we should visit the Duty Free Shop, our flight will be called.
B. We should visit the Duty Free Shop before our flight will be called.
C. Before we should visit the Duty Free Shop, our flight is called.
D. We should visit the Duty Free Shop before our flight is called.

Choose one sentence that has the same meaning to the root one:
My mother asked someone to decorate the house.
A. My mother had someone to decorate the house.
B. My mother had to decorate the house.
C. The house is going to be decorated by my mother.
D. My mother had the house decorated.

Choose one sentence that has the same meaning to the root one:
Some experts think the world is growing warmer, but others disagree.
A. While experts think the world is growing warmer, but others disagree.
B. Although experts think the world is growing warmer, but others disagree.
C. While experts think the world is growing warmer, others disagree.
D. Despite experts think the world is growing warmer, others disagree.