Tập xác định D của hàm số $y={{\log }_{3}}({{x}^{2}}-4x+3)$ là
A.$D=(1;3)$.
B.$D=(-\infty ;2-\sqrt{2})\cup (2+\sqrt{2};+\infty )$.
C.$D=(2-\sqrt{2};1)\cup (3;2+\sqrt{2})$.
D.$D=(-\infty ;1)\cup (3;+\infty )$.

Đa thức A thỏa mãn để $ \dfrac{A}{2x-1}=\dfrac{6{{x}^{2}}+3x}{4{{x}^{2}}-1} $ là
A.$ A=3x $.
B.$ A=-4x $.
C.$ A=2x-1 $.
D.$ A=2x $.

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
He may be shy now, but he’ll soon come out of his ______ when he meets the right girl.
A.shed
B.hole
C.shell
D.shoe

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
She _______ me a very charming compliment on my painting
A.paid
B.took
C.showed
D.made

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
“I’m going for an interview for a job this afternoon.” - “Good luck! I’ll keep my _____crossed for you”
A.hands
B.legs
C.arms
D.fingers

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
I’m not surprised that Tom is ill. He’s been _____ for a long time. It was bound to affect his health sooner or later.
A.going to town
B.having his cake and eating it
C.playing with fire
D.burning the candle at both ends

Choose the best answer. Tell me what happened ______ your own words.
A.in
B.on
C.by
D.with

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
I like my new job, the only fly in the ______ is the fact that I have to work every other weekend.
A.fat
B.porridge
C.soup
D.ointment

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
The car swerved to avoid a cyclist and just missed hitting a passer- by by______.
A.a narrow escape
B.a close thing
C.a slight edge
D.a hair’s breadth

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
When you do something, you should _____.
A.go down well with
B.weigh up the pros and cons
C.get through to
D.turn over a new leaf