Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to the following question.
She ________ driving to the station every day but then she suddenly decided to walk instead.
A.had used to
B.used to
C.didn’t used to
D.was used to

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
________ warfare duties primarily to males was imperative when combat was hand-to-hand.
A.They who assigned
B.Assigned
C.That they were assigning
D.Assigning

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to the following question.
They denied _______ there.
 
A.to having been
 
B.have been
C.having been
D.to have been

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Learning a language means________interested in another culture.
A.as
B.being
C.like
D.to be

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to the following question.
_______ to learn about human origins and evolution, the physical anthropologist studies fossil remains and observes the behavior of other primates.
A.In trying
B.There is trying
C.Because trying
D.Do they try

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to the following question.
I am angry because you didn’t tell me the truth. I don’t like ________.
A.to deceive
B.deceiving
C.have deceived
D.being deceived

Nhôm không tan trong dung dịch
A. $ HCl. $
B. $ NaHS{{O}_{4}}. $
C. $ N{{a}_{2}}S{{O}_{4}}. $
D. $ NaOH. $

Chất nào sau đây được điều chế trong công nghiệp bằng phương pháp điện phân nóng chảy?
A.Axit sunfuric.
B.Lưu huỳnh.
C.Kim loại nhôm.
D.Kim loại sắt.

Nhôm không được dùng để làm
A.vật liệu chế tạo dụng cụ đun nấu trong gia đình
B.vật liệu trang trí nội thất
C.vật liệu chiếu sáng ban đêm
D.vật liệu chế taọ máy bay, tàu vũ trụ

Trong công nghiệp, nhôm được sản xuất từ quặng 
A.apatit.
B.pirit.
C.hematit.
D.boxit.