Over the last 10 years , the death rate of Singapore hasn`t changed ... the birth rate has decreased from 10 to 8.                                                                              A till.  B and.    C while.    D however

Peter`s dad used .... To work by bicycle.                                                                         A going     B go    C to go    D goes

Are wind power ... Solar power new kinds of energy for future use                                                       A or     B and     C with.      D but

Câu 14: Cho mạch điện gồm 1 nguồn điện; 2 bóng đèn Đ1; Đ2 mắc nối tiếp; 1 ampe kế đo CĐDĐ chạy trong mạch, 1 công tắc (khóa K) đang đóng; dây dẫn. a. Hãy vẽ thành sơ đồ mạch điện và vẽ thêm chốt dương (+), chốt (-) của ampe kế, chiều dòng điện chạy trong mạch khi công tắc đóng. b. Dựa vào sơ đồ mạch điện trên, biết số chỉ ampe kế là 2A. Tính CĐDĐ qua mỗi đèn? 

II. TENSES OR FORMS OF THE VERBS:
21. Three years ago, she _________________ at a village school. (teach)
22. The population of Vietnam _________________ a lot since 1990. (change)
23. People build more houses because of _________________. (population)
24. Vietnam's population between_________________ 1990 and 2014. (increase)
25. People will _________________ the causes and effects of overpopulation. (understand)
26. Many schools want _________________ less energy and help the environment. (use)
27. The life expectancy has increased because more people have _________________ diets.
(good)
28. People should _________________ fewer children. (have)
29. My brother can speak English _________________. (good)
30. We _________________ him playing soccer yesterday. (not/see)
31. My father is a _________________ driver. He drives carefully. (care)
32. Last night, we _________________ lots of food. (eat)
33. You should stop _________________ computer games. (play)
34. They _________________ TV last night. (not/ watch)
35. I feel really _________________ today. (sickness)
III. REARRANGE THESE WORDS INTO THE RIGHT ORDER
11. There are/ poor people/ because there aren't/ lots of/enough jobs.
→_________________________________________________________________________
12. People/ work by streetcar/ use to/ Did/ 100 years ago/ a lot in the USA/.
→_________________________________________________________________________
13. by steamship? / did you/ other countries/ use to/ travel/ to
→_________________________________________________________________________
14. had/ a medical/yesterday morning/ check-up / The students.
→_________________________________________________________________________
15. because/ the docter/ Ba went to see/ sick. / he was
→_________________________________________________________________________
16. different activities/ take part in/ Those students/ on Saturday morning. /
→_________________________________________________________________________
17. sensibly /. / to eat / must / remember / We /
→_________________________________________________________________________
18. stay/ shouldn’t/ candy/ Children / and / up late/ too much / eat/.
→_________________________________________________________________________
19. but / accidents /. / can be fun / can happen / Swimming
→_________________________________________________________________________
20. good for you / but/ wash it carefully /. / is very/ you must / Spinach /
→_________________________________________________________________________
IV. REWRITE THE FOLLOWING SENTENCES, BEGINNING
WITH WORDS GIVEN.
11. What about donating clothes and books for poor children?

(giai thich li do vi sao , co hoac ko giai thich cx dc ,nhung neu co giai thich se tot hon)

II. TENSES OR FORMS OF THE VERBS:
21. Three years ago, she _________________ at a village school. (teach)
22. The population of Vietnam _________________ a lot since 1990. (change)
23. People build more houses because of _________________. (population)
24. Vietnam's population between_________________ 1990 and 2014. (increase)
25. People will _________________ the causes and effects of overpopulation. (understand)
26. Many schools want _________________ less energy and help the environment. (use)
27. The life expectancy has increased because more people have _________________ diets.
(good)
28. People should _________________ fewer children. (have)
29. My brother can speak English _________________. (good)
30. We _________________ him playing soccer yesterday. (not/see)
31. My father is a _________________ driver. He drives carefully. (care)
32. Last night, we _________________ lots of food. (eat)
33. You should stop _________________ computer games. (play)
34. They _________________ TV last night. (not/ watch)
35. I feel really _________________ today. (sickness)
III. REARRANGE THESE WORDS INTO THE RIGHT ORDER
11. There are/ poor people/ because there aren't/ lots of/enough jobs.
→_________________________________________________________________________
12. People/ work by streetcar/ use to/ Did/ 100 years ago/ a lot in the USA/.
→_________________________________________________________________________
13. by steamship? / did you/ other countries/ use to/ travel/ to
→_________________________________________________________________________
14. had/ a medical/yesterday morning/ check-up / The students.
→_________________________________________________________________________
15. because/ the docter/ Ba went to see/ sick. / he was
→_________________________________________________________________________
16. different activities/ take part in/ Those students/ on Saturday morning. /
→_________________________________________________________________________
17. sensibly /. / to eat / must / remember / We /
→_________________________________________________________________________
18. stay/ shouldn’t/ candy/ Children / and / up late/ too much / eat/.
→_________________________________________________________________________
19. but / accidents /. / can be fun / can happen / Swimming
→_________________________________________________________________________
20. good for you / but/ wash it carefully /. / is very/ you must / Spinach /
→_________________________________________________________________________
IV. REWRITE THE FOLLOWING SENTENCES, BEGINNING
WITH WORDS GIVEN.
11. What about donating clothes and books for poor children?

Cho ∆ cân tại A, có AD là đường trung tuyến.
a) Chứng minh ∆ ABD = ∆ ACD và AD vuông góc với BC .
b) Cho AB = 10 cm, BC = 16 cm. Tính AD và so sánh các
góc của ∆