Chỉ cần ghi câu trl thôi ạ , hk cần ghi đề đâu UwU
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1, I began learning E 3years ago
2,I did 4 exercises last night
3,He telephone her at 2 o'clock
4,He was in VN for 10 years
5,I got up at halp past five
6,I had bread and omeletes this morning
7,I left home at 6 o' clock
8,I went to school this morning by bicycle
9,I watched television after...
10,I went to bed last night at 10 o'clock
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1 traditional
2 geological
3 recognized
4 illiterate
VII
1 A
2 B
3 A
4 A
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Câu 2 : C
Câu 3 : A
Câu 4 : C
Câu 5 : C
Câu 6 : B
Câu 7 : C
Câu 8 : D
Câu 9 : B
Câu 2: C
Pt\(\Leftrightarrow\left\{{}\begin{matrix}x-2\ge0\\x^2+5x-2=\left(x-2\right)^2\end{matrix}\right.\)\(\Leftrightarrow\left\{{}\begin{matrix}x\ge2\\9x=6\end{matrix}\right.\)\(\Leftrightarrow\left\{{}\begin{matrix}x\ge2\\x=\dfrac{6}{9}\end{matrix}\right.\)\(\Rightarrow x\in\varnothing\)
Câu 3: A
\(\Delta:3x+4y-11=0\)
\(d_{\left(M;\Delta\right)}=\dfrac{\left|3.1+4.-1-11\right|}{\sqrt{3^2+4^2}}=\dfrac{12}{5}\)
Câu 4: Ko có đ/a
Do \(\dfrac{\pi}{2}< \alpha< \pi\Rightarrow tan\alpha< 0;cot\alpha< 0;cos\alpha< 0\)
\(1+cot^2\alpha=\dfrac{1}{sin^2\alpha}\)\(\Rightarrow cot\alpha=\dfrac{-\sqrt{21}}{2}\)
Câu 5:C
Câu 6:B
Câu 7: A
Có nghiệm khi \(\left(m;+\infty\right)\cup\left[-2;2\right]\ne\varnothing\)
\(\Leftrightarrow m< 2\)
Câu 8:D
Câu 9: B
\(cos2\alpha=2cos^2\alpha-1=-\dfrac{23}{25}\)
Câu 10:D
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1 wish => wishes
2 was => were
3 have => had
4 will => would
5 stops => stopped
IV
1 imagination
2 Traditionallu
3 behavior
4 childhood
5 chưa ra
2 traditionally