Từ giữa những năm 70 của thế kỉ XX, thực trạng nền kinh tế Liên Xô và các nước xã hội chủ nghĩa Đông Âu diễn ra như thế nào ?
A.Đạt được nhiều thành tựu to lớn.
B.Trì trệ và khủng hoảng trầm trọng.
C.Khôi phục mức trước chiến tranh.
D.Phát triển xen lẫn suy thoái.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Each nation has many people who voluntarily take care _________ others.
A.after
B.in
C.of
D.up

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Last week we……….(attend) a presentation on the advantages and disadvantages of social networking.
A.had attend
B.attend
C.attended
D.had attended

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Last night, I………….a really great movie at Vancouver Centre Mall.
A.watch
B.watches
C.had watched
D.watched

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
When I arrived home, I realized that someone _______________ all of my furniture.
A.sad stealing
B.had stolen
C.stole
D.had stole

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Nick was accused….having stolen some top secret document.
A.with
B.for
C.to
D.of

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
By Monday Sarah ........... (paint) her first picture.
A.painted
B.had paint
C.paints
D.had painted

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Mozart.....more than 600 pieces of music.
A.had written
B.wrote
C.haved wrote
D.writed

Khoảng cách từ điểm $ B(5;-1) $ đến đường thẳng $ d:3x+2y+13=0 $ là:
A. $ 2\sqrt{13}. $
B. $ 2. $
C. $ \dfrac{\sqrt{13}}{2}. $
D. $ \dfrac{28}{\sqrt{13}}. $

Khoảng cách từ điểm $ M\left( 15;1 \right) $ đến đường thẳng $ \left\{ \begin{matrix} x=2+3t \\ y=t \\ \end{matrix} \right. $ là:
A. $ \sqrt{10}. $
B. $ \dfrac{16}{\sqrt{5}}. $
C. $ \sqrt{5}. $
D. $ \dfrac{1}{\sqrt{10}}. $