Số lượng lao động hoạt động trong nông nghiệp trên thế giới hiện nay khoảng
A.50%.
B.60%.
C.30%.
D.40%.

Số lượng các vùng nông nghiệp hiện nay ở nước ta là
A.6.
B.4.
C.7.
D.2.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
_______ Andew was very hard working, he hardly earned enough to feed his family.
 
A.Even if
B.Although
C.Because
D.In spite of

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
_________ Friday’s unpromising weather forecast, the manager is determined to take the team for an outing to Ridley Park.
A.For
B.Despite
C.Whether
D.Although

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Any jackass can kick down a barn,_______it takes a good carpenter to build one.
A.but
B.that
C.so
D.for

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
The neighborhood had a memorial last weekend, _______ a family’s son had passed away.
 
A.as
B.so
C.and
D.for

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
The Sun,__________ is one of millions of stars in the universe, provides us with heat and light.
 
A.what
B.that
C.which
D.whose

Số nghiệm của hệ phương trình $ \left\{ \begin{array}{l} x+|y|=5 \\ 2x-|y|=4 \end{array} \right. $ là:
A.0
B.1
C.3
D.2

Hệ phương trình $ \left\{ \begin{array}{l} |x|-3\sqrt{2}y=12 \\ 2|x|-\sqrt{2}y=4 \end{array} \right. $ có bao nhiêu nghiệm?
A.Không có nghiệm
B.1 nghiệm
C.3 nghiệm
D.2 nghiệm

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Henry thinks robots _____ take care of our houses in the future but he is not so sure.
A.might
B.will
C.are going to
D.could