1 addictive

2 socializing

3 obesity

4 excited

5 relaxation

6 considerably

7 satisfied

8 communication

1 are becoming

2 haven't listened

3 didn't like

4 was founded

5 spend

6 Have you ever made

7 am going to listen

8 lying

9 to arrive

10 watching - reading

\(\omega=20\left(\dfrac{rad}{s}\right)\)

\(A^2=x^2+\dfrac{v^2}{\omega}\)

\(\Rightarrow A=\sqrt{\left(-4\right)^2+\dfrac{\left(-80\right)^2}{20^2}}=4\sqrt{2}\)

\(cos\varphi=\dfrac{4}{4\sqrt{2}}=\dfrac{1}{\sqrt{2}}\Rightarrow\varphi=\dfrac{\pi}{4}\)

Phương trình dao động:

\(x=4\sqrt{2}cos\left(20t+\dfrac{\pi}{4}\right)\)

5 Our teacher's desk is nice

1 D

2 C

3 B

4 D

5 B

1 It was silly to lend him money

2 Meeting the president is exciting

3 While we were on the summer holiday, we were so happy

4 While they were playing, they cried twice

5 Writing good composition in English was not easy

PART 1: WORD FORMATION (15 pts)
Q36-Q40: Complete the blank in each of the following sentences with the correct form of the word
given in brackets after each. The first sentence is given as an example. Write your answers on the
answer sheet provided.
Example: The beauty of the sunset took my breath away. (beautiful)
Q36: There are four apps that seem to be the main potential threats to Tik Tok’s _____domination___, each with
different audiences, features and challenges. (dominate)
Q37: It is stated by the coal industry that carbon-capture technology is unproven and would make it
___uneconomical________ to build new plants. (economic)
Q38: ___Lost______customer analysis showed that our products were too expensive. (lose)
7
Q39: This little village of Kamsk lies, like an island, habitable and healthy, in the middle of the
_______unhabitable___ district. (habitat)
Q40: Animals in___captivity_____ should be allowed to feed on prey like those they would find in the wild.
(capture)