Chủ nhân đầu tiên của châu Mĩ là người thuộc chủng tộc nào dưới đây?
A.Ôt-xtra-lô-it.
B.Ơ-rô-pê-ô-ít.
C.Nê-grô-ít.
D.Môn-gô-lô-ít.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
The teacher told the student ………. off the lights and fans when they leave the classroom.
A.turning
B.turned
C.to turn
D.turn

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Paolo told me that the symbol of WWF ………. from a panda named Chi Chi.
A.has originated
B.originated
C.to originate
D.is originating

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
As a result of global warming, polar ice ………. faster than at any time in the last 450 years.
A.will now melt
B.now melts
C.is now melting
D.has now melted

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Kevin told me that plastic _____ very harmful for the environment in several ways.
A.was
B.is
C.has been
D.will be

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Mai said that she ………. to write an article about air pollution in her city.
A.wanted
B.is wanting
C.has wanted
D.wants

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Mary said that she ………. to do something to protect the earth.
 
A.wants
B.want
C.wanted
D.has wanted

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
She did the ………. and hung it out to dry.
A.trash
B.laundry
C.chores
D.stuff

Một người đo chiều cao của một cây nhờ một cọc chôn xuống đất, cọc cao 2m và đặt xa cây 15m. Sau khi người ấy lùi xa cách cọc 0,8m thì nhìn thấy đầu cọc và đỉnh cây cùng nằm trên một đường thẳng. Biết rằng khoảng cách từ chân đến mắt người ấy là 1,6m, chiều cao của cây là
A.$ 10m $.
B.$ 9m $.
C.$ 9,5m $.
D.$ 8,5m $.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
He can ………. anything - he's so good with his hands.
A.mend
B.handle
C.cook
D.buy