Dãy nào sau đây gồm các hiđroxit lưỡng tính?
A.$ Fe{{\left( OH \right)}_ 3 },Mg{{\left( OH \right)}_ 2 },Zn{{\left( OH \right)}_ 2 } $.
B.$ Ca{{\left( OH \right)}_ 2 },Pb{{\left( OH \right)}_ 2 },Zn{{\left( OH \right)}_ 2 } $.
C.$ Ba{{\left( OH \right)}_ 2 },Al{{\left( OH \right)}_ 3 },Sn{{\left( OH \right)}_ 2 } $.
D.$ Zn{{\left( OH \right)}_ 2 },Al{{\left( OH \right)}_ 3 },Sn{{\left( OH \right)}_ 2 } $.

Theo A-rê-ni-ut, hiđroxit nào sau đây có tính lưỡng tính ?
A.$ Pb{{\left( OH \right)}_ 2 } $ 
B.$ Zn{{\left( OH \right)}_ 2 } $ 
C.$ Al{{\left( OH \right)}_ 3 } $ 
D.Tất cả

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
I took __________ to this town.
A.a boring long train journey
B.a train journey boring long
C.a train journey long boring
D.a long boring train journey

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Helen has just bought __________.
A.two scarves new wool black
B.two new black wool scarves
C.some new black wool two scarves
D.two black wool new scarves

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Paul has just sold his_____ car and intends to buy a new one.
A.black old Japanese
B.Japanese old black
C.old Japanese black
D.old black Japanese

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
I love that _______ antique car that always parked at the end of the street.
A.really big old green
B.big really old green
C.really big green old
D.really old big green

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Ann has a ________ face.
A.round pink small
B.small round pink
C.small pink round
D.round small pink

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
My father likes reading books. Thus, I bought __________ book for him when I was in Europe.
A.a old English interesting old
B.an interesting English old
C.an English old interesting
D.an interesting old English

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
There are many______in our library.
A.interesting old American history books
B.old American interesting history books.
C.interesting American old history books
D.American interesting old history books

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
She has just bought________.
A.an impressive reddish French wood coffee table
B.an impressive French wood reddish coffee table
C.a reddish impressive wood French coffee table
D.an impressive French reddish coffee table