Đề: 38.  It is  two months___________.

       A. since it has rained                                            B. since last it rained  

       C. since it last rained                                            D. since it was last rained

39.  He couldn’t set up a new world record___________.

       A. although he tried hard                                     B. even though he tried hard

       C. in spite of the fact that he tried hard D. All are correct.

40.  I really wish____________ but I didn’t.

       A. I had invited her to the party              B. had I invited her to the party

       C. I invited her to the party                                 D. I has invited her to the party

Trả lời: 38. C

            39. D

            40. A

Đề: 36. My mom is always bad-tempered  when I leave my room untidy.

A. feeling embarrassed                                   B. talking too much

C. very happy and satisfied                D. easily annoyed or irritated

37. After her mother died, she was raised  by her grandparents.

A. grown up                B. brought up              C. come into                D. put up

Trả lời: 36. D

             37. B

Read the following passage, then choose the correct answer to questions 26- 35.

   The traffic light signal was invented by a railway signaling engineer. It was installed (26)_________The House of Parliament in 1868. It (27)_________like any railway signal of the time, and was operated by gas. (28)_________, it exploded and killed a policeman, and the accident (29)_________further development until cars became common.  (30)_________traffic lights are an American invention. Red-green (31)_________were installed in Cleveland in 1914. Three-color signals, (32)_________by hand from a tower in the (33)_________of the street, were installed in New York in 1918. The (34)________lights of this type to (35)________in Britain were in London, on the junction between St James’s street and Piccadilly in 1925.

26. A. outside                               B. out                         

      C. out of                                  D. outdoors

27.   A. resembled                         B. looked                   

       C. showed                              D. seemed

28.   A. However                            B. Therefore               

       C. Although                           D. Despite

29.   A. forbade                              B. avoided                   

       C. discouraged                     D. disappointed

30.   A. New                           B. Recent                     

       C. Modern                       D. Late

31.   A. methods                     B. systems                   

       C. means                        D. ways

32.   A. worked                       B. operated                 

       C. turned                         D. held

33.   A. heart                           B. focus                       

        C. halfway                       D. middle

34.   A. original                       B. primary                   

        C. first                            D. early

35.   A. show                           B. appear                     

       C. happen                        D. become

23. My mother always made  me to wash=>wash my hands before every meal.

24. Although his leg was broken. However=>X, he managed to get out of  the car.

25. The information I got from the assistant was such=>so confusing that I didn’t know what to do.   

Where is the question??????????

Đề: Cho 1(g) bột sắt tiếp xúc với oxi một thời gian thấy khối lượng bột sắt đã vượt lên 1,39(g). Nếu chỉ tạo thành 1 oxit duy nhất thì đó có thể là oxit nào?

Trả lời: 

m tăng= mO= 1,39-1= 0,39g 

nO= 0,39/16= 0,02 mol 

nFe= 1/56= 0,02 mol 

nFe: nO= 0.02:0,02= 1:1 nên oxit sắt là FeO

Tác phẩm văn học nào sau đây không được sáng tác vào thời Lê sơ? 

a. Hịch tướng sĩ

b. Bình Ngô đại cáo

c. Quốc âm thi tập

d. Hồng Đức quốc âm thi tập