BT5: Nguyên tố R tạo thành hợp chất khí với hidro có CTHH chung là RH4. Trong đó hợp chất oxit cao nhất có 72,73% là oxi. a) Hãy xác định tên của nguyên tố R. b) Viết CTHH của hợp chất của R với Oxi và hidro.

bằng 1 đoạn văn quy nạp khoảng 12 câu, hay phân tính tình cảm yêu làng,yêu nước của nhân vật ông Hai trong cuộc trò chuyện với con trai(có sd 1 câu trần thuật đơn có từ "là" và thán từ

cho hàm số y=(m-2)x+5 có đồ thị đường thẳng là (d)(m là tham số,m khác 2)

a, vẽ đồ thị hàm số trên với m = 4

b,tìm m để đồ thị hàm số cắt trục hoành tại điểm có hoanh độ là 2

      I.        Rewrite:

5..Despite the heavy snow, we got home on time.

  A.It snowed heavily;therefore, we got home on time.

  B.It snowed heavily. However, we got home on time.

  C.We got home on time because it didn’t now heavily.

  D.Due to the heavy storm, we didn’t get home on time.

6.They are dying paper because they want to make paper flowers for Tet.

  A.They are dying paper so that make paper flowers for Tet.

  B.They are dying paper in order to make paper flowers for Tet.

  C.To make paper flowers for Tet and they are dying paper .

  D.They want to make paper flowers for Tet,but they are dying paper .

7.My uncle has been to Quang Nam to write an article about the Sedand.

  A.Why does your uncle go to Quang Nam?

  B.When has your uncle been to Quang Nam?

  C.What has your uncle been to Quang Nam with?

  D.What has your uncle been to Quang Nam for?

8.This is the most difficult test we’ve done.

  A.We have never done  more difficult test than this one.

  B.This is the first time we did a difficult test.

  C.We have never done a more difficult test than this one.

  D.We have ever done a more difficult test than this one.

Câu 6: Cho 3,84 gam Cu tác dụng hết với 4,26 gam khí X2 tạo thành m gam muối CuX2. a) Tìm khí X2 và tính m. b) Hòa tan m gam muối CuX2 trên vào 100 nước thì tạo thành dung dịch A. Cho 40 gam dung dịch Natri hidroxit 20% vào dung dịch A thì thu được kết tủa B và dung dịch D. Tính nồng độ phần trăm của dung dịch D.

giúp em với ạ

viết bài văn về lòng hiếu thảo

36.We ran to the station so as not to miss the train. ( so that )

  A.We ran to the station in order that we wouldn’t miss the train.

  B. We ran to the station so that not to miss thhe train.

  C.We ran to the station  so fast not to miss the train.

  D.We didn’t run to the station early enough to catch the train.

37. “I’m so worried because I’m having a big exam coming up soon”, said Minh

  A.Minh said he was so worried because he was having a big exam coming up soon.

  B.Minh was so worried because I was having a big exam coming up soon.

  C.Minh told he was so worried because he was having a big exam coming up soon.

  D.Minh said he is so worried because he was having a big exam coming up soon.

38. I can’t wait to see my grandparents in Ha Noi next weekend.

  A.I’m looking to see my grandparents in Ha Noi next weekend.

  B.I’m looking forward to seeing my grandparents in Ha Noi next weekend.

  C.Seeing my grandparents in Ha Noi next weekend is so happy.

  D.I will see my grandparents in Ha Noi next weekend.

33.In spite of her tiredness, she was able to finish knitting the scarf.

  A.Although she is tired, she was able to finish knitting the scarf.

  B.In spite of the fact that being tired, she was able to finish knitting the scarf.

  C.Even though she was tired, she could finish knitting the scarf.

  D.She can finish knitting the scarf although she is tired.

34. It’s such a pity your sister can’t come as well.

  A.I wish your sister can come as well.    B.If only your sister could came.

  C.I wish your sister could come.            D.I wish your sister had come.

  35.I have no idea when I should take that English test.

  A.I have no idea when to should take that English test.

  B.I have no idea English test should be taken.

  C.English test was said to have taken.

  D.I have no idea when to take that Englisg test.