A.scientists
B.study
C.poisonous
D.carried

A.My sister thinks the film is too frightening because I am not scared at all.
B.My sister thinks the film is too frightening so I am not scared at all.
C.My sister thinks the film is too frightening, whereas I am not scared at all.
D.My sister thinks the film is too frightening although I am not scared at all.

A.My sister thinks the film is too frightening because I am not scared at all.
B.My sister thinks the film is too frightening so I am not scared at all.
C.My sister thinks the film is too frightening, whereas I am not scared at all.
D.My sister thinks the film is too frightening although I am not scared at all.

A.Angry with his boss, he quitted his job immediately.
B.He quitted his job immediately, angry with his boss.
C.Angry with his boss he is, he quitted his job immediately.
D.He was so angry with his boss although quitting his job immediately.

A.in
B.about
C.with
D.over

A.in
B.about
C.with
D.over

A.Lũng Cú.
B.TP Hồ Chí Minh.
C.Hà Nội.
D.Huế.

A.Liên Xô và Mĩ ký hiệp định hạn chế vũ khí chiến lược.
B.Chiến tranh Việt Nam kết thúc.
C.33 nước châu Âu cùng Mỹ và Canada ký định ước Henxinki.
D.hai nước Đức kí hiệp định về những cơ sở của quan hệ Đông Đức và Tây Đức.

A.who leave
B.left
C.to leave
D.leaving

A.Although increasing urbanization has led to problems, but cities are centers of civilization and culture.
B.In spite of increasing urbanization has led to problems, yet cities are centers of civilization and culture.
C.Despite increasing urbanization has led to problems, but cities are centers of civilization and cultures.
D.Though increasing urbanization has led to problems, cities are centers of civilization and culture.