26A

27B

28B

29D

30D

31 There are 200 million people.

32 The Internet allows people to work at home instead of travelling to work.

33 The Internet allows businesses to communicate with customers and workers in any part of the world for the cost of a local telephone call.

34 Yes, they can.

35 Yes, it is.

36 She said that she didn't remember what she had done the day before.

37 If he took my advice, he wouldn't get in trouble. 

38 Almost all houses in the neighbourhood have been destroyed by the fire. 

39 It's such a difficult problem that I can't explain it.

40 ko thấy đề cho lắm ạ

cho mình xin ctlhn nhé

26 A

27 B

28 B

29 D

30 D

31 about 200 milion people

32 The Internet allows people to work at home instead of travelling to work.

33 The Internet allows businesses to communicate with customers and workers in any part of the world for the cost of a local telephone call.

34 Yes, they can

35 Yes, it is

36 She said that she didn't remember what she had done the day before.

37 If he took my advice, he wouldn't get in trouble.

38 Almost all houses in the neighbourhood have been destroyed by the fire.

39 It's such a difficult problem that I can't explain it.