Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
He managed to keep his job__________ the manager had threatened to sack him.
A.unless
B.although
C.despite
D.therefore

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
“ ______ you treat him, he’ll help you. He’s so tolerant.”
A.No matter how
B.Even though
C.As if
D.In addition to

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
Peter always takes a map with him ______ he loses his way.
A.in case
B.so
C.so that
D.if

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
We will leave for the airport ________ he is ready.
A.as soon as
B.during
C.until
D.while

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
_______ price is high, we cannot afford to buy a new car.
A.Now that
B.As long as
C.Whereas
D.Although

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
__________smoking is a causative factor of many diseases, there is no ban on tobacco advertising.
A.In spite of
B.Therefore
C.Although
D.However

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Ask her to come and see me as soon as she _______ her work.
A.finish
B.has finished
C.finished
D.finishing

Choose the answer (A, B, C, D) which best fits the space
The building has a smoke detector _____ any fires can be detected immediately.
A.so that
B.if
C.as if
D.such as

Đại diện nào dưới đây ưa sống ở nước hơn trên cạn, nuốt khí vào cơ thể căng phồng như 1 chiếc phao bơi?
A.Ếch giun.
B.Cá cóc Tam Đảo.
C.Ếch cây.
D.Ễnh ương.

Lớp lưỡng cư được phân thành mấy bộ?
A.3.
B.4.
C.5.
D.2.