VI.

34. This is the first time Jack has visited Hoi An ancient town.

35. If we work hard, we'll make this beach clean and beautiful again.

36. A show to raise money for charity was organized by the students yesterday.

37. Huy said that he was going to spend his summer vacation in the countryside.

38. It is not certain that they will succeed.

IX.

41. Kate asked me where I was planning to spend my holiday.

42. It takes an hour to fly from Sophia to Athens.

43. A new style of jeans has just been introduced in the USA.

44. If I knew John's phone number, I could call him.

45. It is such an expensive house that we can't buy it.

Một ấm điện có ghi 120V - 480W, người ta sử dụng nguồn điện có hiệu điện thế 120V để đun nước. Điện trở của ấm và cường độ dòng điện qua ấm bằng

A. 30Ω; 4A             

B. 0,25Ω; 4A          

C. 30Ω; 0,4A          

D. 0,25Ω; 0,4A