16. She is scared of sleeping alone

17. What are you talking about ?

18. Philip waited for her at the movie theatre

19. He started learning English since 2005

20. The manager didn’t take part in the discussion

21. This knife is useful, it can’t cut anything (use)

22. If the machine goes wrong, tell the engineer (engine)

23. What a lovely .dress! Did you make it yourself (love)

24. We need to know your weight., Minh (weigh)

25. An has a toothache. It is very painful (pain)

26. They want (buy) to buy some meat

27. You must (wash) wash your hands before meals

28. I am used to (stay) staying up late

29. He spent 2 hours (finish) finishing.this exercise

30. The test is too difficult for the pupils (finish) to finish in time

$\text{IV.}$

$\text{16. of}$

$\text{17. about}$

$\text{18. for}$

$\text{19. in}$

$\text{20. in}$

$\text{V.}$

$\text{21. useless}$

$\text{22. engineer}$

$\text{23. lovely}$

$\text{24. weight}$

$\text{25. painful}$

$\text{VI.}$

$\text{26. to buy}$

$\text{27. wash}$

$\text{28. staying}$

$\text{29. finishing}$

$\text{30. to finish}$