Khi cho kim loại trung bình và yếu tác dụng với $ HN{ O _ 3 } $ đặc nóng, sản phẩm khử thu được là:
A. $ NO $
B. $ { N _ 2 }O $
C. $ { N _ 2 } $
D. $ N{ O _ 2 } $

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Some young couples do not have enough knowledge for taking care of children and _______ is too difficult for them.
A.care taking
B.caring
C.catering
D.childcare

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Tim and his parents often __________ about what time he should come home. They hardly ever agree with each other.
A.discuss
B.mention
C.complain
D.argue

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Coke and Pepsi are two examples of __________.
A.alcohol
B.fast food
C.soft drinks
D.spirit

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Throughout history, there have always been conflicts _______ parents and their teenage children.
A.about
B.for
C.between
D.in

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
A nuclear family is a family that consists of _________ and children.
 
A.relatives
B.grandchildren
C.parents
D.grandparents

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
If you want to learn English quickly, you should join a __________ programme in an English speaking country.
A.local people
B.community stay
C.homestay
D.local stay

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
I live in a _______ family with just my parents and my younger brother.
A.Big
B.Nuclear
C.Extended
D.Crowded

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
I think you should talk to your parents about it. I’m sure they will _______ you the best advice.
A.say
B.give
C.take
D.convince

Axit nitric đặc nguội có thể phản ứng được với các chất nào sau đây?
A.$ Cu,Ag,Al $
B.$ Al,CuO,N{ a _ 2 }C{ O _ 3 } $
C.$ C,Ag,Cu $
D.$ P,Fe,FeO $