haven't seen - were

hasn't finished

has used

visited - was doing

haven't seen - hasn't gone - bought

#Bright

haven't seen - was

hasn't finish

had use

visited - was

haven't saw - hadn't go - had bought

maybe nha

1 It takes Lan 15 minutes to learn new words

2 It is a beautiful picture

3 Nam spends 5 minutes doing the test

4 Minh has to learn new words

5 Hoa used to have breakfast at 6a.m.

6 Minh often studied well

#Dark Bringer

3x(x+2)

MTC:3.x(x+2)

22

\(\dfrac{-1}{8}\le\dfrac{x}{72}\le\dfrac{-1}{36}\)

\(\dfrac{-9}{72}\le\dfrac{x}{72}\le\dfrac{-2}{72}\)

\(\Rightarrow\) \(x\in\) {\(-9;-8;-7;-6;-5;-4;-3;-2\)}

\(\text{x^3 – 5x^2 + 8x – 4 }\)

\(\text{= x^3 – 4x^2 + 4x – x^2 + 4x – 4}\)

\(\text{= x( x^2 – 4x + 4 ) – ( x^2 – 4x + 4 )}\)

\(\text{= ( x – 1 ) ( x – 2 )^2}\)

\(x^3-5x^2+8x-4=x^3-x^2-4x^2+4x-4\\ =x^2\left(x-1\right)-4x\left(x-1\right)+4\left(x-1\right)\\ =\left(x^2-4x+4\right)\left(x-1\right)\\ =\left(x-2\right)^2\left(x-1\right)\)

1. According/ latest report/ the number/ people/ injured/ typhoon/ nearly/ 150.

=> According to the latest report, the number of people injured in the typhoon was nearly 150.

2. I/ look forward to/ hear/ you/ soon.

=> I am looking forward to hearing from you soon

3. The number/ English speakers/ increase/ recent years.

=> The number of English speakers increased in recent years

4. Tsunamis/ also/ refer/ the public/ tidal waves.

=> Tsunamis are also referred to the public as tidal waves.

5. We/ use/ art/ communicate/ 200 years.

=> We will be using art to communicate in 200 years

1. => According to the latest report, the number of people injured in the typhoon was nearly 150.

2. => I am looking forward to hearing from you soon.

3. => The number of English speakers increased in recent years.

4. => Tsunamis are also referred to the public as tidal waves.

5. => We will be using art to communicate in 200 years.

B

1.B

2.C

3.D

4.C