1.f

2.d

3.e

4.g

5.b

6.h

7.a

8.c

1. unavailable

2. unavoidable

3. untidy

4. unable

5. impolite

6. impossible

7. immature

8. uninformed

9. impatient

10. unforeseen

B

35. My house has a living room.

36. She has long hair.

Dãy có số số hạng là: \(\left(100-1\right):3+1=34\) (số)

⇒ \(S=\dfrac{\left(100+1\right)\cdot34}{2}=1717\)

1. In spite of

2. therefore

3. ran

\(\left(\dfrac{1}{2}-1\right)\left(\dfrac{1}{3}-1\right)\left(\dfrac{1}{4}-1\right)...\left(\dfrac{1}{2008}-1\right)\left(\dfrac{1}{2009}-1\right)\\ \\ \\ \\ =\left(-\dfrac{1}{2}\right)\left(-\dfrac{2}{3}\right)\left(-\dfrac{3}{4}\right)...\left(-\dfrac{2007}{2008}\right)\left(-\dfrac{2008}{2009}\right)\\ \\ \\ \\ =\dfrac{1}{2}\cdot\dfrac{2}{3}\cdot\dfrac{3}{4}\cdot...\cdot\dfrac{2007}{2008}\cdot\dfrac{2008}{2009}\)

( Vì số thừa số là chẵn)

\(=\dfrac{1\cdot2\cdot3\cdot...\cdot2007\cdot2008}{2\cdot3\cdot4\cdot...\cdot2008\cdot2009}\\ \\ \\ \\ =\dfrac{1}{2009}\)

\(\dfrac{4}{3}\cdot\dfrac{5}{15}=\dfrac{4\cdot5}{3\cdot15}=\dfrac{4}{9}\)

\(\dfrac{4}{5}:\dfrac{16}{15}=\dfrac{4}{5}\cdot\dfrac{15}{16}=\dfrac{4\cdot15}{5\cdot16}=\dfrac{3}{4}\)

1. A

2. B

3. B