Chủ đề:
Bài 21: Tính theo công thức hóa họcCâu hỏi:
Một muối clorua của chì chứa 25,54% theo khối lượng. Xác định CTHH của muối chì clorua, biết M hợp chất = 278g/mol
1/Read the following dialogue and choose the best answer for each blank.
Mr.Minh: The traffic (1).......... much worse now.
Mr.Thanh: Yes, it (2)........... easy to park in the city centre.
Mr.Minh: That right.
Mr.Thanh: I remmember when you could park outside (3)......... shop you were going to.
Mr.Minh: Yes, you could park (4)........ at all at one time, but no there (5)......... parking metres everywhere.
Mr.Thanh: And i turned so many of the roads (6)....... one-way streets now.
Mr.Minh: I know.
Mr.Thanh: It will take a while before everyone becomes(7)......... with it.
Mr.Minh: Actully, i miss a good old days when we (8)......... to the shop. (9)........were no cars at all on the
road then.
Mr.Thanh: Mind you, I must say prefer(10)........ by car!
1. A. got B. is getting C. used to get D. getting
2. A. would be B. used to be C. is being D. use being
3 A.some B. any C. much D. many
4 A.anywhere B. somewhere C.nowhere D. everywhere
5 A. is B.are C.was D.were
6. A.to B.in C.into D.onto
7. A.friendly B.usual C.common D.familier
8.A.cycle B.cycled C.use to cycling D. used to cycle
9. A. There B. That C. Their D. These
10. A. travel B.travelled C.travelling D. to travelling