Tính nhanh:

\(C=\dfrac{1}{100}-\dfrac{1}{100\cdot99}-\dfrac{1}{99\cdot98}-\dfrac{1}{98\cdot97}-...-\dfrac{1}{3\cdot2}-\dfrac{1}{2\cdot1}\)

E. REWRITE THE FOLLWWING SENTENCES...

1: I couldn't do the test although it wasn't difficult.

=> I spite of............................................................

2: although he got up early, he was late for the first train,

=> in spite of........................................................

3: although english garmmar is difficult, we like to study it

=> despite...........................