Choose A, B, C, or D to indicate the correct answer to the following question. When I was a child, I collected a/an ______ of poems.
A.anthology
B.family
C.pack
D.set

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
Before she left for Australia she promised her parents that she would drop them _______ at least once a month
A.a line
B.a note
C.a word
D.the news

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
“What’s wrong with Tom today? He’s unusually quiet,” - “He’s got something on his ______. I expect”.
A.brain
B.mind
C.brow
D.thoughts

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
Nothing ever seems to bother Colin. No matter what happens, he always seems to remain as cool as______.
A.a cucumber
B.cool feet
C.as Eskimo
D.ice-cream

Choose the letter A, B, C, or D to indicate the correct answer to the following question. I was glad when he said that his car was ________.
A.for my use
B.at my use
C.for me use
D.at my disposal

Điều kiện xác định của phân thức $ \dfrac{2x-1}{{{x}^{2}}-4x+4} $ là
A.$ x
e -2 $.
B.$ x < 2 $.
C.$ x
e 2 $.
D.$ x > -2 $.

Điều kiện xác định của phân thức $ \dfrac{x+y}{{{(x+3)}^{2}}+{{(y-2)}^{2}}} $ là
A.$ \left\{ \begin{array}{l} x > -3 \\ y > 2 \end{array} \right. $.
B.$ \left\{ \begin{array}{l} x < -3 \\ y < 2 \end{array} \right. $.
C.$ \left\{ \begin{array}{l} x
e -3 \\ y
e 2 \end{array} \right. $.
D.$ \left\{ \begin{array}{l} x > -3 \\ y
e 2 \end{array} \right. $.

Điều kiện xác định của phân thức $ \dfrac{4}{{{x}^{2}}+{{y}^{2}}-2\text{x}+2} $ là
A.$ \left\{ \begin{array}{l} x > -3 \\ y > 2 \end{array} \right. $.
B.Luôn có nghĩa.
C.$ \left\{ \begin{array}{l} x > -3 \\ y
e 2 \end{array} \right. $.
D.$ \left\{ \begin{array}{l} x < -3 \\ y < 2 \end{array} \right. $.

Điều kiện xác định của phân thức $ \dfrac{{{x}^{2}}-4}{9{{x}^{2}}-16} $ là
A.$ x
e \pm \dfrac{4}{3} $.
B.$ x < -\dfrac{4}{3} $.
C.$ x > \dfrac{4}{3} $.
D.$ x
e -\dfrac{4}{3} $.

Cho hàm số $y = {\log _{{x^2} + x + 1}}{x^2}$ . Tập xác định của hàm số là
A.$\mathbb{R}$.
B.$\mathbb{R}\backslash \left\{ 0; -1 \right\}$.
C.$\left( 0;+\infty \right)$.
D.$\left( -\infty ;0 \right)$.