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1 C
2 D
3 B
4 A
5 D
6 A
7 A
8 D
9 B
10 C
IV
1 affected
2 practical
3 environmentalist
4 picnicking
5 outstanding
V
1 to have - built
2 broke - was being moved
3 doing - to answer
4 are -laughing - Have - been telling
5 will have finished
IV
1 by
2 on
3 at - in
4 to
5 for
6 with
7 into
8 of
9 in
V
1 carelessly
2 increasingly
3 protection
4 unresonable
5 preservation
1 to go => go
2 is => was
3 living=> lived
4 by => on
5 smoking => smoked
6 than => as
7 since => for
8 much => more
9 keeping => kept
10 mine => from mine
a, enough chairs
b,strong enough
c,enough time
d,well enough
e, big enough
f,enough qualification
g, warm enough
h, enough cups
i,experienced enough
j, warm enough
k,enough experience
\(M=x^4-4x+7=\left(x^2-4x+4\right)+3=\left(x-2\right)^2+3\ge3\)
\(minM=3\Leftrightarrow x=2\)
\(P=x^2-6x+y^2-2y+12=\left(x^2-6x+9\right)+\left(y^2-2y+1\right)+2=\left(x-3\right)^2+\left(y-1\right)^2+2\ge2\)
\(minP=2\Leftrightarrow\)\(\left\{{}\begin{matrix}x=3\\y=1\end{matrix}\right.\)
8, were
9,don't hurry
10,doesn't spend
1, Lan is shorter than Trang
2,Lan isn't as tall as trang
3,Mr John is the best teacher in this school
4,My house is the smallest in the village
5,Learning Chinese is more difficult than learning English
D
Giải thích:
Cấu trúc: tired of + V_ing (Chán ngắt với điều gì, hoạt động nào đó)