\(\dfrac{2^{15}.9^3}{6^7.4^4}\) = 

II. Do as directed:

2. I ( visit)............ my friends in Sapa two years ago.

4. His students ( not speak)                          Japanese in class. 

5. People grow a lot of flowers in Da Lat. ( Change the sentence into the passive voice)

→ A lot of flowers ...................................................... 

8. In 1994, UNESCO recognised Ha Long Bay as a World Heritage Site.

→ In 1994, Ha Long Bay .............................................

36. Right 

37.Wrong

38.Doesn't say 

39.Right 

40.Right

A